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href="#Skin_conditions"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Skin conditions</span> </div> </a> <ul id="toc-Skin_conditions-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Psychological" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Psychological"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Psychological</span> </div> </a> <ul id="toc-Psychological-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Causes" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Causes"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Causes</span> </div> </a> <button aria-controls="toc-Causes-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Causes subsection</span> </button> <ul id="toc-Causes-sublist" class="vector-toc-list"> <li id="toc-Pattern_hair_loss" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Pattern_hair_loss"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Pattern hair loss</span> </div> </a> <ul id="toc-Pattern_hair_loss-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Infection" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Infection"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Infection</span> </div> </a> <ul id="toc-Infection-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Drugs" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Drugs"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.3</span> <span>Drugs</span> </div> </a> <ul id="toc-Drugs-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Trauma" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Trauma"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.4</span> <span>Trauma</span> </div> </a> <ul id="toc-Trauma-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Pregnancy" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Pregnancy"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.5</span> <span>Pregnancy</span> </div> </a> <ul id="toc-Pregnancy-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Other_causes" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Other_causes"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.6</span> <span>Other causes</span> </div> </a> <ul id="toc-Other_causes-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Genetics" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Genetics"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.7</span> <span>Genetics</span> </div> </a> <ul id="toc-Genetics-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Pathophysiology" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Pathophysiology"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Pathophysiology</span> </div> </a> <ul id="toc-Pathophysiology-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Diagnosis" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Diagnosis"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Diagnosis</span> </div> </a> <ul id="toc-Diagnosis-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Management" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Management"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Management</span> </div> </a> <button aria-controls="toc-Management-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Management subsection</span> </button> <ul id="toc-Management-sublist" class="vector-toc-list"> <li id="toc-Hiding_hair_loss" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Hiding_hair_loss"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.1</span> <span>Hiding hair loss</span> </div> </a> <ul id="toc-Hiding_hair_loss-sublist" class="vector-toc-list"> <li id="toc-Head" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Head"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.1.1</span> <span>Head</span> </div> </a> <ul id="toc-Head-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Eyebrows" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Eyebrows"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.1.2</span> <span>Eyebrows</span> </div> </a> <ul id="toc-Eyebrows-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Medications" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Medications"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.2</span> <span>Medications</span> </div> </a> <ul id="toc-Medications-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Surgery" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Surgery"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.3</span> <span>Surgery</span> </div> </a> <ul id="toc-Surgery-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Chemotherapy" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Chemotherapy"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.4</span> <span>Chemotherapy</span> </div> </a> <ul id="toc-Chemotherapy-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Embracing_baldness" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Embracing_baldness"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.5</span> <span>Embracing baldness</span> </div> </a> <ul id="toc-Embracing_baldness-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Alternative_medicine" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Alternative_medicine"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.6</span> <span>Alternative medicine</span> </div> </a> <ul id="toc-Alternative_medicine-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Research" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Research"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Research</span> </div> </a> <button aria-controls="toc-Research-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Research subsection</span> </button> <ul id="toc-Research-sublist" class="vector-toc-list"> <li id="toc-Hair_follicle_aging" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Hair_follicle_aging"> <div class="vector-toc-text"> <span class="vector-toc-numb">7.1</span> <span>Hair follicle aging</span> </div> </a> <ul id="toc-Hair_follicle_aging-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Hedgehog_signaling" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Hedgehog_signaling"> <div class="vector-toc-text"> <span class="vector-toc-numb">7.2</span> <span>Hedgehog signaling</span> </div> </a> <ul id="toc-Hedgehog_signaling-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Etymology" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Etymology"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>Etymology</span> </div> </a> <ul id="toc-Etymology-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">9</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">10</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">11</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" title="Table of Contents" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Hair loss</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 38 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-38" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">38 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B5%D9%84%D8%B9" title="صلع – Arabic" lang="ar" hreflang="ar" data-title="صلع" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-av mw-list-item"><a href="https://av.wikipedia.org/wiki/%D0%A0%D0%B0%D1%81_%D1%85%D3%80%D1%83%D0%BB%D0%B0%D1%80%D0%B0%D0%B1_%D0%B1%D0%B0%D0%BA%D3%80" title="Рас хӀулараб бакӀ – Avaric" lang="av" hreflang="av" data-title="Рас хӀулараб бакӀ" data-language-autonym="Авар" data-language-local-name="Avaric" class="interlanguage-link-target"><span>Авар</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Ke%C3%A7%C9%99l" title="Keçəl – Azerbaijani" lang="az" hreflang="az" data-title="Keçəl" data-language-autonym="Azərbaycanca" data-language-local-name="Azerbaijani" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%9F%E0%A6%BE%E0%A6%95" title="টাক – Bangla" lang="bn" hreflang="bn" data-title="টাক" data-language-autonym="বাংলা" data-language-local-name="Bangla" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/Thut-th%C3%A2u" title="Thut-thâu – Minnan" lang="nan" hreflang="nan" data-title="Thut-thâu" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="Minnan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Ple%C5%A1" title="Pleš – Czech" lang="cs" hreflang="cs" data-title="Pleš" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Glatze" title="Glatze – German" lang="de" hreflang="de" data-title="Glatze" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A4%CF%81%CE%B9%CF%87%CF%8C%CF%80%CF%84%CF%89%CF%83%CE%B7" title="Τριχόπτωση – Greek" lang="el" hreflang="el" data-title="Τριχόπτωση" data-language-autonym="Ελληνικά" data-language-local-name="Greek" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Kalveco" title="Kalveco – Esperanto" lang="eo" hreflang="eo" data-title="Kalveco" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B7%D8%A7%D8%B3%DB%8C" title="طاسی – Persian" lang="fa" hreflang="fa" data-title="طاسی" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr badge-Q70894304 mw-list-item" title=""><a href="https://fr.wikipedia.org/wiki/Calvitie" title="Calvitie – French" lang="fr" hreflang="fr" data-title="Calvitie" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Calvicie" title="Calvicie – Galician" lang="gl" hreflang="gl" data-title="Calvicie" data-language-autonym="Galego" data-language-local-name="Galician" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-gan mw-list-item"><a href="https://gan.wikipedia.org/wiki/%F0%A9%AD%BD%E9%A0%AD" title="𩭽頭 – Gan" lang="gan" hreflang="gan" data-title="𩭽頭" data-language-autonym="贛語" data-language-local-name="Gan" class="interlanguage-link-target"><span>贛語</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%97%E0%A4%82%E0%A4%9C%E0%A4%BE%E0%A4%AA%E0%A4%A8" title="गंजापन – Hindi" lang="hi" hreflang="hi" data-title="गंजापन" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Alopesia" title="Alopesia – Indonesian" lang="id" hreflang="id" data-title="Alopesia" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Botak" title="Botak – Javanese" lang="jv" hreflang="jv" data-title="Botak" data-language-autonym="Jawa" data-language-local-name="Javanese" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-lbe mw-list-item"><a href="https://lbe.wikipedia.org/wiki/%D0%91%D0%B0%D0%BB%D0%BB%D1%83_%D0%B1%D0%B0%D0%BA%D3%80" title="Баллу бакӀ – Lak" lang="lbe" hreflang="lbe" data-title="Баллу бакӀ" data-language-autonym="Лакку" data-language-local-name="Lak" class="interlanguage-link-target"><span>Лакку</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Plikimas" title="Plikimas – Lithuanian" lang="lt" hreflang="lt" data-title="Plikimas" data-language-autonym="Lietuvių" data-language-local-name="Lithuanian" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-mzn mw-list-item"><a href="https://mzn.wikipedia.org/wiki/%DA%A9%D9%84" title="کل – Mazanderani" lang="mzn" hreflang="mzn" data-title="کل" data-language-autonym="مازِرونی" data-language-local-name="Mazanderani" class="interlanguage-link-target"><span>مازِرونی</span></a></li><li class="interlanguage-link interwiki-cdo mw-list-item"><a href="https://cdo.wikipedia.org/wiki/L%C3%A1k-t%C3%A0u" title="Lák-tàu – Mindong" lang="cdo" hreflang="cdo" data-title="Lák-tàu" data-language-autonym="閩東語 / Mìng-dĕ̤ng-ngṳ̄" data-language-local-name="Mindong" class="interlanguage-link-target"><span>閩東語 / Mìng-dĕ̤ng-ngṳ̄</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Kaalheid" title="Kaalheid – Dutch" lang="nl" hreflang="nl" data-title="Kaalheid" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E8%84%B1%E6%AF%9B%E7%97%87" title="脱毛症 – Japanese" lang="ja" hreflang="ja" data-title="脱毛症" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Skallethet" title="Skallethet – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Skallethet" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/%C5%81ysienie" title="Łysienie – Polish" lang="pl" hreflang="pl" data-title="Łysienie" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Calv%C3%ADcie" title="Calvície – Portuguese" lang="pt" hreflang="pt" data-title="Calvície" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Calvi%C8%9Bie" title="Calviție – Romanian" lang="ro" hreflang="ro" data-title="Calviție" data-language-autonym="Română" data-language-local-name="Romanian" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/R%C3%ABnia_e_flok%C3%ABve" title="Rënia e flokëve – Albanian" lang="sq" hreflang="sq" data-title="Rënia e flokëve" data-language-autonym="Shqip" data-language-local-name="Albanian" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/Tigna" title="Tigna – Sicilian" lang="scn" hreflang="scn" data-title="Tigna" data-language-autonym="Sicilianu" data-language-local-name="Sicilian" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Baldness" title="Baldness – Simple English" lang="en-simple" hreflang="en-simple" data-title="Baldness" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Ple%C5%A1ina" title="Plešina – Slovak" lang="sk" hreflang="sk" data-title="Plešina" data-language-autonym="Slovenčina" data-language-local-name="Slovak" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-so mw-list-item"><a href="https://so.wikipedia.org/wiki/Bidaar" title="Bidaar – Somali" lang="so" hreflang="so" data-title="Bidaar" data-language-autonym="Soomaaliga" data-language-local-name="Somali" class="interlanguage-link-target"><span>Soomaaliga</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a 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/></a></span></div></div> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"><span class="mw-redirectedfrom">(Redirected from <a href="/w/index.php?title=Alopecia&redirect=no" class="mw-redirect" title="Alopecia">Alopecia</a>)</span></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Loss of hair from the head or body</div> <p class="mw-empty-elt"> </p> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">Several terms redirect here. For other uses, see <a href="/wiki/Balding_(surname)" title="Balding (surname)">Balding (surname)</a>, <a href="/wiki/Bald_(disambiguation)" class="mw-disambig" title="Bald (disambiguation)">Bald (disambiguation)</a>, and <a href="/wiki/Alopecia_(disambiguation)" class="mw-disambig" title="Alopecia (disambiguation)">Alopecia (disambiguation)</a>.</div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">"Baldness" redirects here. Not to be confused with <a href="/wiki/Boldness" title="Boldness">Boldness</a>.</div> <div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Medical condition</div><style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox infobox-has-images-with-white-backgrounds"><tbody><tr><th colspan="2" class="infobox-above" style="background:#ccc">Hair loss</th></tr><tr><th scope="row" class="infobox-label">Other names</th><td class="infobox-data">Alopecia, baldness</td></tr><tr><td colspan="2" class="infobox-full-data"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:Alopecia.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d2/Alopecia.jpg/220px-Alopecia.jpg" decoding="async" width="220" height="243" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d2/Alopecia.jpg/330px-Alopecia.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d2/Alopecia.jpg/440px-Alopecia.jpg 2x" data-file-width="544" data-file-height="600" /></a></span></td></tr><tr><td colspan="2" class="infobox-full-data">A bald spot on a man</td></tr><tr><th scope="row" class="infobox-label">Pronunciation</th><td class="infobox-data"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style><div class="plainlist"><ul><li>Alopecia: <span class="rt-commentedText nowrap"><span class="IPA nopopups noexcerpt" lang="en-fonipa"><a href="/wiki/Help:IPA/English" title="Help:IPA/English">/<span style="border-bottom:1px dotted"><span title="/ˌ/: secondary stress follows">ˌ</span><span title="/æ/: 'a' in 'bad'">æ</span><span title="'l' in 'lie'">l</span><span title="/ə/: 'a' in 'about'">ə</span><span title="/ˈ/: primary stress follows">ˈ</span><span title="'p' in 'pie'">p</span><span title="/iː/: 'ee' in 'fleece'">iː</span><span title="/ʃ/: 'sh' in 'shy'">ʃ</span></span>(<span style="border-bottom:1px dotted"><span title="/i/: 'y' in 'happy'">i</span></span>)<span style="border-bottom:1px dotted"><span title="/ə/: 'a' in 'about'">ə</span></span>,<span class="wrap"> </span>-<span style="border-bottom:1px dotted"><span title="'s' in 'sigh'">s</span><span title="/i/: 'y' in 'happy'">i</span><span title="/./: syllable break">.</span><span title="/ə/: 'a' in 'about'">ə</span></span>/</a></span></span><sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </li></ul></div></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Medical_specialty" title="Medical specialty">Specialty</a></th><td class="infobox-data"><a href="/wiki/Dermatology" title="Dermatology">Dermatology</a></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Signs_and_symptoms" title="Signs and symptoms">Symptoms</a></th><td class="infobox-data">Loss of <a href="/wiki/Hair" title="Hair">hair</a> from part of the head or body.<sup id="cite_ref-NHS2013_2-0" class="reference"><a href="#cite_note-NHS2013-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Complication_(medicine)" title="Complication (medicine)">Complications</a></th><td class="infobox-data"><a href="/wiki/Psychological_distress" class="mw-redirect" title="Psychological distress">Psychological distress</a><sup id="cite_ref-Nal2016_3-0" class="reference"><a href="#cite_note-Nal2016-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Types</th><td class="infobox-data"><a href="/wiki/Androgenetic_alopecia" class="mw-redirect" title="Androgenetic alopecia">Male-pattern hair loss</a>, <a href="/wiki/Female-pattern_hair_loss" class="mw-redirect" title="Female-pattern hair loss">female-pattern hair loss</a>, <a href="/wiki/Alopecia_areata" title="Alopecia areata">alopecia areata</a>, <a href="/wiki/Telogen_effluvium" title="Telogen effluvium">telogen effluvium</a><sup id="cite_ref-Var2015_4-0" class="reference"><a href="#cite_note-Var2015-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Treatment</th><td class="infobox-data">Accepting the condition, medications, shaving of balding areas, surgery<sup id="cite_ref-Var2015_4-1" class="reference"><a href="#cite_note-Var2015-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Medication" title="Medication">Medication</a></th><td class="infobox-data"><a href="/wiki/Pattern_hair_loss" title="Pattern hair loss">Pattern hair loss</a>: <a href="/wiki/Minoxidil" title="Minoxidil">minoxidil</a>, <a href="/wiki/Finasteride" title="Finasteride">finasteride</a><sup id="cite_ref-Mc2012_5-0" class="reference"><a href="#cite_note-Mc2012-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><br /><a href="/wiki/Alopecia_areata" title="Alopecia areata">Alopecia areata</a>: <a href="/wiki/Steroid" title="Steroid">steroid</a> injections<sup id="cite_ref-Var2015_4-2" class="reference"><a href="#cite_note-Var2015-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Frequency</th><td class="infobox-data">50% of males, 25% of females (pattern hair loss by age 50)<sup id="cite_ref-Var2015_4-3" class="reference"><a href="#cite_note-Var2015-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Le2008_6-0" class="reference"><a href="#cite_note-Le2008-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup></td></tr></tbody></table><style data-mw-deduplicate="TemplateStyles:r1236303919">@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-has-images-with-white-backgrounds img{background:white}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-has-images-with-white-backgrounds img{background:white}}</style> <p><b>Hair loss</b>, also known as <b>alopecia</b> or <b>baldness</b>, refers to a loss of <a href="/wiki/Hair" title="Hair">hair</a> from part of the head or body.<sup id="cite_ref-NHS2013_2-1" class="reference"><a href="#cite_note-NHS2013-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Typically at least the head is involved.<sup id="cite_ref-Var2015_4-4" class="reference"><a href="#cite_note-Var2015-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> The severity of hair loss can vary from a small area to the entire body.<sup id="cite_ref-DermNet2016_7-0" class="reference"><a href="#cite_note-DermNet2016-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Inflammation" title="Inflammation">Inflammation</a> or <a href="/wiki/Scarring" class="mw-redirect" title="Scarring">scarring</a> is not usually present.<sup id="cite_ref-Var2015_4-5" class="reference"><a href="#cite_note-Var2015-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Hair loss in some people causes <a href="/wiki/Psychological_distress" class="mw-redirect" title="Psychological distress">psychological distress</a>.<sup id="cite_ref-Nal2016_3-1" class="reference"><a href="#cite_note-Nal2016-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>Common types include <a href="/wiki/Androgenetic_alopecia" class="mw-redirect" title="Androgenetic alopecia">male- or female-pattern hair loss</a>, <a href="/wiki/Alopecia_areata" title="Alopecia areata">alopecia areata</a>, and a thinning of hair known as <a href="/wiki/Telogen_effluvium" title="Telogen effluvium">telogen effluvium</a>.<sup id="cite_ref-Var2015_4-6" class="reference"><a href="#cite_note-Var2015-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> The cause of male-pattern hair loss is a combination of <a href="/wiki/Genetics" title="Genetics">genetics</a> and <a href="/wiki/Androgen" title="Androgen">male hormones</a>; the cause of female pattern hair loss is unclear; the cause of alopecia areata is <a href="/wiki/Autoimmune" class="mw-redirect" title="Autoimmune">autoimmune</a>; and the cause of telogen effluvium is typically a physically or psychologically stressful event.<sup id="cite_ref-Var2015_4-7" class="reference"><a href="#cite_note-Var2015-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Telogen effluvium is very common following <a href="/wiki/Pregnancy" title="Pregnancy">pregnancy</a>.<sup id="cite_ref-Var2015_4-8" class="reference"><a href="#cite_note-Var2015-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>Less common causes of hair loss without inflammation or scarring include the <a href="/wiki/Traction_alopecia" title="Traction alopecia">pulling out of hair</a>, certain medications including <a href="/wiki/Chemotherapy" title="Chemotherapy">chemotherapy</a>, <a href="/wiki/HIV/AIDS" title="HIV/AIDS">HIV/AIDS</a>, <a href="/wiki/Hypothyroidism" title="Hypothyroidism">hypothyroidism</a>, and <a href="/wiki/Malnutrition" title="Malnutrition">malnutrition</a> including <a href="/wiki/Iron_deficiency" title="Iron deficiency">iron deficiency</a>.<sup id="cite_ref-Nal2016_3-2" class="reference"><a href="#cite_note-Nal2016-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Var2015_4-9" class="reference"><a href="#cite_note-Var2015-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Causes of <a href="/wiki/Scarring_hair_loss" title="Scarring hair loss">hair loss that occurs with scarring</a> or inflammation include <a href="/wiki/Tinea_capitis" title="Tinea capitis">fungal infection</a>, <a href="/wiki/Lupus_erythematosus" title="Lupus erythematosus">lupus erythematosus</a>, <a href="/wiki/Radiation_therapy" title="Radiation therapy">radiation therapy</a>, and <a href="/wiki/Sarcoidosis" title="Sarcoidosis">sarcoidosis</a>.<sup id="cite_ref-Nal2016_3-3" class="reference"><a href="#cite_note-Nal2016-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Var2015_4-10" class="reference"><a href="#cite_note-Var2015-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Diagnosis of hair loss is partly based on the areas affected.<sup id="cite_ref-Var2015_4-11" class="reference"><a href="#cite_note-Var2015-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>Treatment of pattern hair loss may simply involve accepting the condition, which can also include <a href="/wiki/Head_shaving" title="Head shaving">shaving one's head</a>.<sup id="cite_ref-Var2015_4-12" class="reference"><a href="#cite_note-Var2015-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Interventions that can be tried include the medications <a href="/wiki/Minoxidil" title="Minoxidil">minoxidil</a> (or <a href="/wiki/Finasteride" title="Finasteride">finasteride</a>) and <a href="/wiki/Hair_transplant_surgery" class="mw-redirect" title="Hair transplant surgery">hair transplant surgery</a>.<sup id="cite_ref-Mc2012_5-1" class="reference"><a href="#cite_note-Mc2012-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Le2008_6-1" class="reference"><a href="#cite_note-Le2008-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> Alopecia areata may be treated by <a href="/wiki/Corticosteroid" title="Corticosteroid">steroid</a> injections in the affected area, but these need to be frequently repeated to be effective.<sup id="cite_ref-Var2015_4-13" class="reference"><a href="#cite_note-Var2015-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Hair loss is a common problem.<sup id="cite_ref-Var2015_4-14" class="reference"><a href="#cite_note-Var2015-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Pattern hair loss by age 50 affects about half of men and a quarter of women.<sup id="cite_ref-Var2015_4-15" class="reference"><a href="#cite_note-Var2015-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> About 2% of people develop alopecia areata at some point in time.<sup id="cite_ref-Var2015_4-16" class="reference"><a href="#cite_note-Var2015-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <style data-mw-deduplicate="TemplateStyles:r886046785">.mw-parser-output .toclimit-2 .toclevel-1 ul,.mw-parser-output .toclimit-3 .toclevel-2 ul,.mw-parser-output .toclimit-4 .toclevel-3 ul,.mw-parser-output .toclimit-5 .toclevel-4 ul,.mw-parser-output .toclimit-6 .toclevel-5 ul,.mw-parser-output .toclimit-7 .toclevel-6 ul{display:none}</style><div class="toclimit-3"><meta property="mw:PageProp/toc" /></div> <div class="mw-heading mw-heading2"><h2 id="Terminology">Terminology</h2></div> <p>Baldness is the partial or complete lack of hair growth, and part of the wider topic of "hair thinning". The degree and pattern of baldness varies, but its most common cause is <a href="/wiki/Androgenic_hair_loss" class="mw-redirect" title="Androgenic hair loss">androgenic hair loss</a>, <i>alopecia androgenetica</i>, or <i>alopecia seborrheica</i>, with the last term primarily used in Europe.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (September 2013)">citation needed</span></a></i>]</sup> </p> <div class="mw-heading mw-heading3"><h3 id="Hypotrichosis">Hypotrichosis</h3></div> <p>Hypotrichosis is a condition of abnormal hair patterns, predominantly loss or reduction. It occurs, most frequently, by the growth of <a href="/wiki/Vellus_hair" title="Vellus hair">vellus hair</a> in areas of the body that normally produce <a href="/wiki/Terminal_hair" title="Terminal hair">terminal hair</a>. Typically, the individual's <a href="/wiki/Human_hair_growth" title="Human hair growth">hair growth</a> is normal after birth, but shortly thereafter the hair is shed and replaced with sparse, abnormal hair growth. The new hair is typically fine, short and brittle, and may lack pigmentation. Baldness may be present by the time the subject is 25 years old.<sup id="cite_ref-Dawber2004pp53-54_8-0" class="reference"><a href="#cite_note-Dawber2004pp53-54-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Signs_and_symptoms">Signs and symptoms</h2></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Andre_Agassi_(2011).jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/93/Andre_Agassi_%282011%29.jpg/170px-Andre_Agassi_%282011%29.jpg" decoding="async" width="170" height="215" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/93/Andre_Agassi_%282011%29.jpg/255px-Andre_Agassi_%282011%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/93/Andre_Agassi_%282011%29.jpg/340px-Andre_Agassi_%282011%29.jpg 2x" data-file-width="412" data-file-height="520" /></a><figcaption>A case of mid-frontal baldness: <a href="/wiki/Andre_Agassi" title="Andre Agassi">Andre Agassi</a></figcaption></figure> <p>Symptoms of hair loss include hair loss in patches usually in circular patterns, dandruff, skin lesions, and scarring. Alopecia areata (mild – medium level) usually shows in unusual hair loss areas, e.g., eyebrows, backside of the head or above the ears, areas the male pattern baldness usually does not affect. In male-pattern hair loss, loss and thinning begin at the temples and the crown and hair either thins out or falls out. Female-pattern hair loss occurs at the <a href="/wiki/Frontal_lobe" title="Frontal lobe">frontal</a> and <a href="/wiki/Parietal_lobe" title="Parietal lobe">parietal</a>. </p><p>People have between 100,000 and 150,000 hairs on their head. The number of strands normally lost in a day varies but on average is 100.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> In order to maintain a normal volume, hair must be replaced at the same rate at which it is lost. The first signs of hair thinning that people will often notice are more hairs than usual left in the hairbrush after brushing or in the basin after shampooing. Styling can also reveal areas of thinning, such as a wider parting or a thinning crown.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (August 2015)">citation needed</span></a></i>]</sup> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Uudenvuodenpuhe_1959.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/df/Uudenvuodenpuhe_1959.jpg/220px-Uudenvuodenpuhe_1959.jpg" decoding="async" width="220" height="299" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/df/Uudenvuodenpuhe_1959.jpg/330px-Uudenvuodenpuhe_1959.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/df/Uudenvuodenpuhe_1959.jpg/440px-Uudenvuodenpuhe_1959.jpg 2x" data-file-width="3113" data-file-height="4224" /></a><figcaption>Throughout his political career, <a href="/wiki/Urho_Kekkonen" title="Urho Kekkonen">Urho Kekkonen</a>, the <a href="/wiki/President_of_Finland" title="President of Finland">President of Finland</a>, was well known for his baldness. He was last known to have had hair in about the 1920s.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> This photo is of Kekkonen in 1959.</figcaption></figure> <div class="mw-heading mw-heading3"><h3 id="Skin_conditions">Skin conditions</h3></div> <p>A substantially blemished face, back and limbs could point to cystic acne. The most severe form of the condition, <a href="/wiki/Acne_vulgaris" class="mw-redirect" title="Acne vulgaris">cystic acne</a>, arises from the same hormonal imbalances that cause hair loss and is associated with <a href="/wiki/Dihydrotestosterone" title="Dihydrotestosterone">dihydrotestosterone</a> production.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Psychological">Psychological</h3></div> <p>The <a href="/wiki/Psychology" title="Psychology">psychology</a> of hair thinning is a complex issue. Hair is considered an essential part of overall identity: especially for women, for whom it often represents femininity and attractiveness. Men typically associate a full head of hair with youth and vigor. People experiencing hair thinning often find themselves in a situation where their physical appearance is at odds with their own <a href="/wiki/Self-image" title="Self-image">self-image</a> and commonly worry that they appear older than they are or less attractive to others. Psychological problems due to baldness, if present, are typically most severe at the onset of symptoms.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </p><p>Hair loss induced by cancer <a href="/wiki/Chemotherapy" title="Chemotherapy">chemotherapy</a> has been reported to cause changes in <a href="/wiki/Self-concept" title="Self-concept">self-concept</a> and <a href="/wiki/Body_image" title="Body image">body image</a>. Body image does not return to the previous state after regrowth of hair for a majority of patients. In such cases, patients have difficulties expressing their feelings (<a href="/wiki/Alexithymia" title="Alexithymia">alexithymia</a>) and may be more prone to avoiding family conflicts. Family therapy can help families to cope with these psychological problems if they arise.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Causes">Causes</h2></div> <p>Although not completely understood,<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (September 2013)">citation needed</span></a></i>]</sup> hair loss can have many causes: </p> <div class="mw-heading mw-heading3"><h3 id="Pattern_hair_loss">Pattern hair loss</h3></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">Main article: <a href="/wiki/Pattern_hair_loss" title="Pattern hair loss">Pattern hair loss</a></div> <p>Male pattern hair loss is believed to be due to a combination of genetics and the <a href="/wiki/Androgen" title="Androgen">male hormone</a> <a href="/wiki/Dihydrotestosterone" title="Dihydrotestosterone">dihydrotestosterone</a>.<sup id="cite_ref-Var2015_4-17" class="reference"><a href="#cite_note-Var2015-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> The cause in female pattern hair loss remains unclear.<sup id="cite_ref-Var2015_4-18" class="reference"><a href="#cite_note-Var2015-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Infection">Infection</h3></div> <ul><li><a href="/wiki/Dissecting_cellulitis_of_the_scalp" title="Dissecting cellulitis of the scalp">Dissecting cellulitis of the scalp</a></li> <li><a href="/wiki/Fungal_infection" title="Fungal infection">Fungal infections</a> (such as <a href="/wiki/Tinea_capitis" title="Tinea capitis">tinea capitis</a>)</li> <li><a href="/wiki/Folliculitis" title="Folliculitis">Folliculitis</a> from various causes <ul><li><a href="/wiki/Demodex_folliculitis" class="mw-redirect" title="Demodex folliculitis">Demodex folliculitis</a>, caused by <i><a href="/wiki/Demodex_folliculorum" title="Demodex folliculorum">Demodex folliculorum</a></i>, a microscopic mite that feeds on the sebum produced by the <a href="/wiki/Sebaceous_gland" title="Sebaceous gland">sebaceous glands</a>, denies hair essential nutrients and can cause thinning. <i>Demodex folliculorum</i> is not present on every scalp and is more likely to live in an excessively oily scalp environment.</li></ul></li> <li>Secondary <a href="/wiki/Syphilis" title="Syphilis">syphilis</a><sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup></li></ul> <div class="mw-heading mw-heading3"><h3 id="Drugs">Drugs</h3></div> <ul><li>Temporary or permanent hair loss can be caused by several medications, including those for <a href="/wiki/Blood_pressure" title="Blood pressure">blood pressure</a> problems, <a href="/wiki/Diabetes_mellitus" class="mw-redirect" title="Diabetes mellitus">diabetes</a>, <a href="/wiki/Heart_disease" class="mw-redirect" title="Heart disease">heart disease</a> and <a href="/wiki/Cholesterol" title="Cholesterol">cholesterol</a>.<sup id="cite_ref-WebMD_Drug-Induced_Hair_Loss_15-0" class="reference"><a href="#cite_note-WebMD_Drug-Induced_Hair_Loss-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> Any that affect the body's hormone balance can have a pronounced effect: these include the contraceptive pill, <a href="/wiki/Hormone_replacement_therapy_(menopause)" class="mw-redirect" title="Hormone replacement therapy (menopause)">hormone replacement therapy</a>, <a href="/wiki/Steroid" title="Steroid">steroids</a> and <a href="/wiki/Acne_vulgaris" class="mw-redirect" title="Acne vulgaris">acne</a> medications.<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup></li> <li>Some treatments used to cure <a href="/wiki/Fungus" title="Fungus">mycotic</a> infections can cause massive hair loss.<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup></li> <li>Medications (side effects from drugs, including <a href="/wiki/Chemotherapy" title="Chemotherapy">chemotherapy</a>, <a href="/wiki/Anabolic_steroids" class="mw-redirect" title="Anabolic steroids">anabolic steroids</a>, and <a href="/wiki/Birth_control_pill" class="mw-redirect" title="Birth control pill">birth control pills</a><sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-WebMD_Drug-Induced_Hair_Loss_15-1" class="reference"><a href="#cite_note-WebMD_Drug-Induced_Hair_Loss-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup>)</li></ul> <div class="mw-heading mw-heading3"><h3 id="Trauma">Trauma</h3></div> <ul><li><a href="/wiki/Traction_alopecia" title="Traction alopecia">Traction alopecia</a> is most commonly found in people with <a href="/wiki/Ponytail" title="Ponytail">ponytails</a> or <a href="/wiki/Cornrows" title="Cornrows">cornrows</a> who pull on their hair with excessive force. In addition, rigorous brushing and heat styling, rough scalp massage can damage the <a href="/wiki/Cuticle_(hair)" title="Cuticle (hair)">cuticle</a>, the hard outer casing of the hair. This causes individual strands to become weak and break off, reducing overall hair volume.</li> <li><a href="/wiki/Frictional_alopecia" title="Frictional alopecia">Frictional alopecia</a> is hair loss caused by rubbing of the hair or follicles, most infamously around the ankles of men from socks, where even if socks are no longer worn, the hair often will not grow back.</li> <li><a href="/wiki/Trichotillomania" title="Trichotillomania">Trichotillomania</a> is the loss of hair caused by compulsive pulling and bending of the hairs. Onset of this disorder tends to begin around the onset of puberty and usually continues through adulthood. Due to the constant extraction of the hair roots, permanent hair loss can occur.</li> <li>Traumas such as childbirth, major surgery, poisoning, and severe stress may cause a hair loss condition known as <a href="/wiki/Telogen_effluvium" title="Telogen effluvium">telogen effluvium</a>,<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> in which a large number of hairs enter the resting phase at the same time, causing shedding and subsequent thinning. The condition also presents as a side effect of <a href="/wiki/Chemotherapy" title="Chemotherapy">chemotherapy</a> – while targeting dividing cancer cells, this treatment also affects hair's growth phase with the result that almost 90% of hairs fall out soon after chemotherapy starts.<sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup></li> <li>Radiation to the scalp, as when radiotherapy is applied to the head for the treatment of certain cancers there, can cause baldness of the irradiated areas.</li></ul> <div class="mw-heading mw-heading3"><h3 id="Pregnancy">Pregnancy</h3></div> <p>Hair loss often follows <a href="/wiki/Childbirth" title="Childbirth">childbirth</a> in the <a href="/wiki/Postpartum_period" title="Postpartum period">postpartum period</a> without causing baldness. During pregnancy, the hair is thicker owing to increased circulating <a href="/wiki/Estrogen" title="Estrogen">estrogens</a>. Approximately three months after giving birth (typically between 2 and 5 months), estrogen levels drop and hair loss occurs, often particularly noticeably around the hairline and <a href="/wiki/Temple_(anatomy)" title="Temple (anatomy)">temple</a> area. Hair typically grows back normally and treatment is not indicated.<sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> A similar situation occurs in women taking the fertility-stimulating drug <a href="/wiki/Clomiphene" class="mw-redirect" title="Clomiphene">clomiphene</a>. </p> <div class="mw-heading mw-heading3"><h3 id="Other_causes">Other causes</h3></div> <ul><li><b>Autoimmune disease</b>. <a href="/wiki/Alopecia_areata" title="Alopecia areata">Alopecia areata</a> is an <a href="/wiki/Autoimmune_diseases" class="mw-redirect" title="Autoimmune diseases">autoimmune disorder</a> also known as "spot baldness" that can result in hair loss ranging from just one location (<i>Alopecia areata monolocularis</i>) to every hair on the entire body (<i>Alopecia areata universalis</i>). Although thought to be caused by hair follicles becoming dormant, what triggers alopecia areata is not known. In most cases the condition corrects itself, but it can also spread to the entire scalp (<a href="/wiki/Alopecia_totalis" title="Alopecia totalis">alopecia totalis</a>) or to the entire body (<a href="/wiki/Alopecia_universalis" title="Alopecia universalis">alopecia universalis</a>).</li> <li><b>Skin diseases and cancer</b>. Localized or diffuse hair loss may also occur in cicatricial alopecia (<a href="/wiki/Lupus_erythematosus" title="Lupus erythematosus">lupus erythematosus</a>, lichen plano pilaris, folliculitis decalvans, central centrifugal cicatricial alopecia, postmenopausal frontal fibrosing alopecia, etc.). Tumours and skin outgrowths also induce localized baldness (sebaceous nevus, basal cell carcinoma, squamous cell carcinoma). Tumor alopecia is the hair loss in the immediate vicinity of either benign or malignant tumors of the scalp.<sup id="cite_ref-Andrews762_23-0" class="reference"><a href="#cite_note-Andrews762-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page / location: 762">: 762 </span></sup></li> <li><b><a href="/wiki/Hypothyroidism" title="Hypothyroidism">Hypothyroidism</a></b> (an under-active <a href="/wiki/Thyroid" title="Thyroid">thyroid</a>) and the side effects of its related medications can cause hair loss, typically frontal, which is particularly associated with thinning of the outer third of the eyebrows (also seen with syphilis). <a href="/wiki/Hyperthyroidism" title="Hyperthyroidism">Hyperthyroidism</a> (an over-active thyroid) can also cause hair loss, which is parietal rather than frontal.<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup><sup class="noprint Inline-Template" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Identifying_reliable_sources_(medicine)" title="Wikipedia:Identifying reliable sources (medicine)"><span title="Material near this tag may rely on an unreliable or less reliable medical source. (August 2013)">unreliable medical source?</span></a></i>]</sup></li> <li><b>Sebaceous cysts</b>. Temporary loss of hair can occur in areas where <a href="/wiki/Sebaceous_cyst" title="Sebaceous cyst">sebaceous cysts</a> are present for considerable duration (normally one to several weeks).</li> <li><a href="/wiki/Triangular_alopecia" title="Triangular alopecia">Congenital triangular alopecia</a> – It is a triangular, or oval in some cases, shaped patch of hair loss in the temple area of the scalp that occurs mostly in young children. The affected area mainly contains vellus hair follicles or no hair follicles at all, but it does not expand. Its causes are unknown, and although it is a permanent condition, it does not have any other effect on the affected individuals.<sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup></li> <li><b>Hair growth conditions</b>. Gradual thinning of hair with age is a natural condition known as <i>involutional alopecia</i>. This is caused by an increasing number of <a href="/wiki/Hair_follicle" title="Hair follicle">hair follicles</a> switching from the growth, or anagen, phase into a resting phase, or telogen phase, so that remaining hairs become shorter and fewer in number. An unhealthy scalp environment can play a significant role in hair thinning by contributing to miniaturization or causing damage.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (November 2015)">citation needed</span></a></i>]</sup></li> <li><b>Obesity</b>. Obesity-induced stress, such as that induced by a high-fat diet (HFD), targets hair follicle stem cells (HFSCs) to accelerate hair thinning in mice. It is likely that similar molecular mechanism play a role in human hair loss.<sup id="cite_ref-26" class="reference"><a href="#cite_note-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup></li></ul> <p>Other causes of hair loss include: </p> <ul><li><a href="/wiki/Alopecia_mucinosa" title="Alopecia mucinosa">Alopecia mucinosa</a></li> <li><a href="/wiki/Biotinidase_deficiency" title="Biotinidase deficiency">Biotinidase deficiency</a></li> <li><a href="/wiki/Chronic_inflammation" class="mw-redirect" title="Chronic inflammation">Chronic inflammation</a></li> <li><a href="/wiki/Diabetes" title="Diabetes">Diabetes</a><sup id="cite_ref-27" class="reference"><a href="#cite_note-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Pseudopelade_of_Brocq" title="Pseudopelade of Brocq">Pseudopelade of Brocq</a></li> <li><a href="/wiki/Telogen_effluvium" title="Telogen effluvium">Telogen effluvium</a></li> <li><a href="/wiki/Tufted_folliculitis" title="Tufted folliculitis">Tufted folliculitis</a></li></ul> <div class="mw-heading mw-heading3"><h3 id="Genetics">Genetics</h3></div> <p>Genetic forms of localized autosomal recessive hypotrichosis include: </p> <table class="wikitable"> <tbody><tr> <th>Type </th> <th><a href="/wiki/OMIM" class="mw-redirect" title="OMIM">OMIM</a> </th> <th>Gene </th> <th>Locus </th></tr> <tr> <td>LAH1 </td> <td><a rel="nofollow" class="external text" href="https://omim.org/entry/607903">607903</a> </td> <td><i><a href="/wiki/DSG4" class="mw-redirect" title="DSG4">DSG4</a></i> </td> <td>18q12 </td></tr> <tr> <td>LAH2 </td> <td><a rel="nofollow" class="external text" href="https://omim.org/entry/604379">604379</a> </td> <td><i><a href="/wiki/LIPH_(gene)" title="LIPH (gene)">LIPH</a></i> </td> <td>3q27 </td></tr> <tr> <td>LAH3 </td> <td><a rel="nofollow" class="external text" href="https://omim.org/entry/611452">611452</a> </td> <td><i><a href="/wiki/P2RY5" class="mw-redirect" title="P2RY5">P2RY5</a></i> </td> <td>13q14.12-q14.2 </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="Pathophysiology">Pathophysiology</h2></div> <p><a href="/wiki/Hair_follicle" title="Hair follicle">Hair follicle</a> growth occurs in cycles. Each cycle consists of a long growing phase (<a href="/wiki/Anagen_phase" class="mw-redirect" title="Anagen phase">anagen</a>), a short transitional phase (<a href="/wiki/Anagen_phase" class="mw-redirect" title="Anagen phase">catagen</a>) and a short resting phase (<a href="/wiki/Anagen_phase" class="mw-redirect" title="Anagen phase">telogen</a>). At the end of the resting phase, the hair falls out (exogen) and a new hair starts growing in the follicle, beginning the cycle again. </p><p>Normally, about 40 (0–78 in men) hairs reach the end of their resting phase each day and fall out.<sup id="cite_ref-Yamada_et_al_2013_28-0" class="reference"><a href="#cite_note-Yamada_et_al_2013-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup> When more than 100 hairs fall out per day, clinical hair loss (<a href="/wiki/Telogen_effluvium" title="Telogen effluvium">telogen effluvium</a>) may occur.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (June 2012)">citation needed</span></a></i>]</sup> A disruption of the growing phase causes abnormal loss of anagen hairs (<a href="/wiki/Anagen_effluvium" title="Anagen effluvium">anagen effluvium</a>). </p> <div class="mw-heading mw-heading2"><h2 id="Diagnosis">Diagnosis</h2></div> <p>Because they are not usually associated with an increased loss rate, male-pattern and female-pattern hair loss do not generally require testing. If hair loss occurs in a young man with no family history, drug use could be the cause. </p> <ul><li><b>The pull test</b> helps to evaluate diffuse scalp hair loss. Gentle traction is exerted on a group of hairs (about 40–60) on three different areas of the scalp. The number of extracted hairs is counted and examined under a microscope. Normally, fewer than three hairs per area should come out with each pull. If more than ten hairs are obtained, the pull test is considered positive.<sup id="cite_ref-29" class="reference"><a href="#cite_note-29"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup></li> <li><b>The pluck test</b> is conducted by pulling hair out "by the roots". The root of the plucked hair is examined under a microscope to determine the phase of growth, and is used to diagnose a defect of telogen, anagen, or systemic disease. Telogen hairs have tiny bulbs without sheaths at their roots. Telogen effluvium shows an increased percentage of hairs upon examination. Anagen hairs have sheaths attached to their roots. Anagen effluvium shows a decrease in telogen-phase hairs and an increased number of broken hairs.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (June 2020)">citation needed</span></a></i>]</sup></li> <li><b>Scalp biopsy</b> is used when the diagnosis is unsure; a biopsy allows for differing between scarring and nonscarring forms. Hair samples are taken from areas of inflammation, usually around the border of the bald patch.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (June 2020)">citation needed</span></a></i>]</sup></li> <li><b>Daily hair counts</b> are normally done when the pull test is negative. It is done by counting the number of hairs lost. The hair from the first morning combing or during washing should be counted. The hair is collected in a clear plastic bag for 14 days. The strands are recorded. If the hair count is >100/day, it is considered abnormal except after shampooing, where hair counts will be up to 250 and be normal.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (February 2012)">citation needed</span></a></i>]</sup></li> <li><b><a href="/wiki/Trichoscopy" title="Trichoscopy">Trichoscopy</a></b> is a noninvasive method of examining hair and scalp. The test may be performed with the use of a handheld <a href="/wiki/Dermoscope" class="mw-redirect" title="Dermoscope">dermoscope</a> or a video dermoscope. It allows differential diagnosis of hair loss in most cases.<sup id="cite_ref-30" class="reference"><a href="#cite_note-30"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup></li></ul> <p>There are two types of identification tests for female pattern baldness: the Ludwig Scale and the Savin Scale. Both track the progress of diffused thinning, which typically begins on the crown of the head behind the hairline, and becomes gradually more pronounced. For male pattern baldness, the <a href="/wiki/Hamilton%E2%80%93Norwood_scale" title="Hamilton–Norwood scale">Hamilton–Norwood scale</a> tracks the progress of a receding hairline and/or a thinning crown, through to a horseshoe-shaped ring of hair around the head and on to total baldness.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (June 2020)">citation needed</span></a></i>]</sup> </p><p>In almost all cases of thinning, and especially in cases of severe hair loss, it is recommended to seek advice from a doctor or <a href="/wiki/Dermatologist" class="mw-redirect" title="Dermatologist">dermatologist</a>. Many types of thinning have an underlying genetic or health-related cause, which a qualified professional will be able to diagnose.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (June 2020)">citation needed</span></a></i>]</sup> </p> <div class="mw-heading mw-heading2"><h2 id="Management">Management</h2></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">See also: <a href="/wiki/Management_of_hair_loss" title="Management of hair loss">Management of hair loss</a></div> <div class="mw-heading mw-heading3"><h3 id="Hiding_hair_loss">Hiding hair loss</h3></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Syngman_Rhee_and_Douglas_MacArthur.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Syngman_Rhee_and_Douglas_MacArthur.jpg/220px-Syngman_Rhee_and_Douglas_MacArthur.jpg" decoding="async" width="220" height="168" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Syngman_Rhee_and_Douglas_MacArthur.jpg/330px-Syngman_Rhee_and_Douglas_MacArthur.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Syngman_Rhee_and_Douglas_MacArthur.jpg/440px-Syngman_Rhee_and_Douglas_MacArthur.jpg 2x" data-file-width="1280" data-file-height="975" /></a><figcaption>General <a href="/wiki/Douglas_MacArthur" title="Douglas MacArthur">Douglas MacArthur</a> with a <a href="/wiki/Comb_over" title="Comb over">comb over</a></figcaption></figure> <div class="mw-heading mw-heading4"><h4 id="Head">Head</h4></div> <p>One method of hiding hair loss is the <a href="/wiki/Comb_over" title="Comb over">comb over</a>, which involves restyling the remaining hair to cover the balding area. It is usually a temporary solution, useful only while the area of hair loss is small. As the hair loss increases, a comb over becomes less effective. </p><p>Another method is to wear a hat or a hairpiece such as a <a href="/wiki/Wig_(hair)" class="mw-redirect" title="Wig (hair)">wig</a> or <a href="/wiki/Toupee" class="mw-redirect" title="Toupee">toupee</a>. The wig is a layer of artificial or natural hair made to resemble a typical hair style. In most cases the hair is artificial. Wigs vary widely in quality and cost. In the United States, the best wigs – those that look like real hair – cost up to tens of thousands of dollars. Organizations also collect individuals' donations of their own natural hair to be made into wigs for young <a href="/wiki/Cancer" title="Cancer">cancer</a> patients who have lost their hair due to <a href="/wiki/Chemotherapy" title="Chemotherapy">chemotherapy</a> or other cancer treatment in addition to any type of hair loss. </p> <div class="mw-heading mw-heading4"><h4 id="Eyebrows">Eyebrows</h4></div> <p>Though not as common as the loss of hair on the head, chemotherapy, hormone imbalance, forms of hair loss, and other factors can also cause loss of hair in the eyebrows. Loss of growth in the outer one third of the eyebrow is often associated with <a href="/wiki/Hypothyroidism" title="Hypothyroidism">hypothyroidism</a>. Artificial eyebrows are available to replace missing eyebrows or to cover patchy eyebrows. Eyebrow embroidery is another option which involves the use of a blade to add pigment to the eyebrows. This gives a natural 3D look for those who are worried about an artificial look and it lasts for two years. <a href="/wiki/Micropigmentation" class="mw-redirect" title="Micropigmentation">Micropigmentation</a> (permanent makeup tattooing) is also available for those who want the look to be permanent. </p> <div class="mw-heading mw-heading3"><h3 id="Medications">Medications</h3></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Petr%C3%B3leo_Qu%C3%ADmico_Nally_-_Ilustra%C3%A7%C3%A3o_Portugueza_(6Set1941).png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Petr%C3%B3leo_Qu%C3%ADmico_Nally_-_Ilustra%C3%A7%C3%A3o_Portugueza_%286Set1941%29.png/220px-Petr%C3%B3leo_Qu%C3%ADmico_Nally_-_Ilustra%C3%A7%C3%A3o_Portugueza_%286Set1941%29.png" decoding="async" width="220" height="295" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Petr%C3%B3leo_Qu%C3%ADmico_Nally_-_Ilustra%C3%A7%C3%A3o_Portugueza_%286Set1941%29.png/330px-Petr%C3%B3leo_Qu%C3%ADmico_Nally_-_Ilustra%C3%A7%C3%A3o_Portugueza_%286Set1941%29.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Petr%C3%B3leo_Qu%C3%ADmico_Nally_-_Ilustra%C3%A7%C3%A3o_Portugueza_%286Set1941%29.png/440px-Petr%C3%B3leo_Qu%C3%ADmico_Nally_-_Ilustra%C3%A7%C3%A3o_Portugueza_%286Set1941%29.png 2x" data-file-width="924" data-file-height="1238" /></a><figcaption>Portuguese advertisement for a hair-loss product from the 1940s</figcaption></figure> <p>Treatments for the various forms of hair loss have limited success. Three medications have evidence to support their use in male pattern hair loss: <a href="/wiki/Minoxidil" title="Minoxidil">minoxidil</a>, <a href="/wiki/Finasteride" title="Finasteride">finasteride</a>, and <a href="/wiki/Dutasteride" title="Dutasteride">dutasteride</a>.<sup id="cite_ref-Ban2013_31-0" class="reference"><a href="#cite_note-Ban2013-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Roger2008_32-0" class="reference"><a href="#cite_note-Roger2008-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup> They typically work better to prevent further hair loss, than to regrow lost hair.<sup id="cite_ref-Ban2013_31-1" class="reference"><a href="#cite_note-Ban2013-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup> On June 13, 2022, the U.S. Food and Drug Administration (FDA) approved Olumiant (baricitinib) for adults with severe alopecia areatal. It is the first FDA approved drug for systemic treatment, or treatment for any area of the body.<sup id="cite_ref-33" class="reference"><a href="#cite_note-33"><span class="cite-bracket">[</span>33<span class="cite-bracket">]</span></a></sup> </p> <ul><li><a href="/wiki/Minoxidil" title="Minoxidil">Minoxidil</a> (Rogaine) is a nonprescription medication approved for male pattern baldness and alopecia areata. In a liquid or foam, it is rubbed into the scalp twice a day. Some people have an allergic reaction to the propylene glycol in the minoxidil solution and a minoxidil foam was developed without propylene glycol. Not all users will regrow hair. Minoxidil may also be taken orally although this route of administration is not approved by the FDA.<sup id="cite_ref-34" class="reference"><a href="#cite_note-34"><span class="cite-bracket">[</span>34<span class="cite-bracket">]</span></a></sup> The longer the hair has stopped growing, the less likely minoxidil will regrow hair. Minoxidil is not effective for other causes of hair loss. Hair regrowth can take 1 to 6 months to begin. Treatment must be continued indefinitely. If the treatment is stopped, hair loss resumes. Any regrown hair and any hair susceptible to being lost, while Minoxidil was used, will be lost. Most frequent side effects are mild scalp irritation, <a href="/wiki/Allergic_contact_dermatitis" title="Allergic contact dermatitis">allergic contact dermatitis</a>, and unwanted hair in other parts of the body.<sup id="cite_ref-Roger2008_32-1" class="reference"><a href="#cite_note-Roger2008-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Finasteride" title="Finasteride">Finasteride</a> (Propecia) is used in male-pattern hair loss in a pill form, taken 1 milligram per day. It is not indicated for women and is not recommended in pregnant women (as it is known to cause birth defects in fetuses). Treatment is effective starting within 6 weeks of treatment. Finasteride causes an increase in hair retention, the weight of hair, and some increase in regrowth. Side effects in about 2% of males include decreased <a href="/wiki/Libido" title="Libido">sex drive</a>, <a href="/wiki/Erectile_dysfunction" title="Erectile dysfunction">erectile dysfunction</a>, and ejaculatory dysfunction. Treatment should be continued as long as positive results occur. Once treatment is stopped, hair loss resumes.<sup id="cite_ref-Roger2008_32-2" class="reference"><a href="#cite_note-Roger2008-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Corticosteroid" title="Corticosteroid">Corticosteroids</a> injections into the scalp can be used to treat alopecia areata. This type of treatment is repeated on a monthly basis. Oral pills for extensive hair loss may be used for alopecia areata. Results may take up to a month to be seen.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (June 2020)">citation needed</span></a></i>]</sup></li> <li><a href="/wiki/Immunosuppressant" class="mw-redirect" title="Immunosuppressant">Immunosuppressants</a> applied to the scalp have been shown to temporarily reverse alopecia areata, though the side effects of some of these drugs make such therapy questionable.<sup id="cite_ref-35" class="reference"><a href="#cite_note-35"><span class="cite-bracket">[</span>35<span class="cite-bracket">]</span></a></sup></li> <li>There is some tentative evidence that <a href="/wiki/Anthralin" class="mw-redirect" title="Anthralin">anthralin</a> may be useful for treating alopecia areata.<sup id="cite_ref-36" class="reference"><a href="#cite_note-36"><span class="cite-bracket">[</span>36<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Hormonal_modulators" class="mw-redirect" title="Hormonal modulators">Hormonal modulators</a> (<a href="/wiki/Oral_contraceptive_pill" title="Oral contraceptive pill">oral contraceptives</a> or antiandrogens such as <a href="/wiki/Spironolactone" title="Spironolactone">spironolactone</a> and <a href="/wiki/Flutamide" title="Flutamide">flutamide</a>) can be used for female-pattern hair loss associated with <a href="/wiki/Hyperandrogenism" title="Hyperandrogenism">hyperandrogenemia</a>.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (June 2020)">citation needed</span></a></i>]</sup></li></ul> <div class="mw-heading mw-heading3"><h3 id="Surgery">Surgery</h3></div> <p><a href="/wiki/Hair_transplantation" title="Hair transplantation">Hair transplantation</a> is usually carried out under <a href="/wiki/Local_anaesthetic" class="mw-redirect" title="Local anaesthetic">local anesthetic</a>. A surgeon will move healthy hair from the back and sides of the head to areas of thinning. The procedure can take between four and eight hours, and additional sessions can be carried out to make hair even thicker. Transplanted hair falls out within a few weeks, but regrows permanently within months.<sup id="cite_ref-37" class="reference"><a href="#cite_note-37"><span class="cite-bracket">[</span>37<span class="cite-bracket">]</span></a></sup> </p> <ul><li>Surgical options, such as follicle transplants, scalp flaps, and hair loss reduction, are available. These procedures are generally chosen by those who are self-conscious about their hair loss, but they are expensive and painful, with a risk of infection and scarring. Once surgery has occurred, six to eight months are needed before the quality of new hair can be assessed. <ul><li>Scalp reduction is the process of decreasing of the area of bald skin on the head. In time, the skin on the head becomes flexible and stretched enough that some of it can be surgically removed. After the hairless scalp is removed, the space is closed with hair-covered scalp. Scalp reduction is generally done in combination with hair transplantation to provide a natural-looking hairline, especially those with extensive hair loss.</li> <li><a href="/wiki/Hairline_lowering" title="Hairline lowering">Hairline lowering</a> can sometimes be used to lower a high hairline secondary to hair loss, although there may be a visible scar after further hair loss.</li></ul></li> <li>Wigs are an alternative to medical and surgical treatment; some patients wear a wig or hairpiece. They can be used permanently or temporarily to cover the hair loss. High-quality, natural-looking wigs and hairpieces are available.</li></ul> <div class="mw-heading mw-heading3"><h3 id="Chemotherapy">Chemotherapy</h3></div> <p><a href="/wiki/Hypothermia_cap" title="Hypothermia cap">Hypothermia caps</a> may be used to prevent hair loss during some kinds of <a href="/wiki/Chemotherapy" title="Chemotherapy">chemotherapy</a>, specifically, when <a href="/wiki/Taxanes" class="mw-redirect" title="Taxanes">taxanes</a> or <a href="/wiki/Anthracyclines" class="mw-redirect" title="Anthracyclines">anthracyclines</a> are administered.<sup id="cite_ref-38" class="reference"><a href="#cite_note-38"><span class="cite-bracket">[</span>38<span class="cite-bracket">]</span></a></sup> It is not recommended to be used when cancer is present in the skin of the scalp or for lymphoma or leukemia.<sup id="cite_ref-39" class="reference"><a href="#cite_note-39"><span class="cite-bracket">[</span>39<span class="cite-bracket">]</span></a></sup> There are generally only minor side effects from scalp cooling given during chemotherapy.<sup id="cite_ref-40" class="reference"><a href="#cite_note-40"><span class="cite-bracket">[</span>40<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Embracing_baldness">Embracing baldness</h3></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">Main article: <a href="/wiki/Head_shaving" title="Head shaving">Head shaving</a></div> <p>Instead of attempting to conceal their hair loss, some people embrace it by either doing nothing about it or sporting a <a href="/wiki/Head_shaving" title="Head shaving">shaved head</a>.<sup id="cite_ref-41" class="reference"><a href="#cite_note-41"><span class="cite-bracket">[</span>41<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-42" class="reference"><a href="#cite_note-42"><span class="cite-bracket">[</span>42<span class="cite-bracket">]</span></a></sup> The general public became more accepting of men with shaved heads in the early 1950s, when Russian-American actor <a href="/wiki/Yul_Brynner" title="Yul Brynner">Yul Brynner</a> began sporting the look; the resulting phenomenon inspired many of his male fans to shave their heads.<sup id="cite_ref-43" class="reference"><a href="#cite_note-43"><span class="cite-bracket">[</span>43<span class="cite-bracket">]</span></a></sup> Male celebrities then continued to bring mainstream popularity to shaved heads,<sup id="cite_ref-44" class="reference"><a href="#cite_note-44"><span class="cite-bracket">[</span>44<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-45" class="reference"><a href="#cite_note-45"><span class="cite-bracket">[</span>45<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-46" class="reference"><a href="#cite_note-46"><span class="cite-bracket">[</span>46<span class="cite-bracket">]</span></a></sup> including athletes such as <a href="/wiki/Michael_Jordan" title="Michael Jordan">Michael Jordan</a><sup id="cite_ref-47" class="reference"><a href="#cite_note-47"><span class="cite-bracket">[</span>47<span class="cite-bracket">]</span></a></sup> and <a href="/wiki/Zinedine_Zidane" title="Zinedine Zidane">Zinedine Zidane</a> and actors such as <a href="/wiki/Dwayne_Johnson" title="Dwayne Johnson">Dwayne Johnson</a>,<sup id="cite_ref-48" class="reference"><a href="#cite_note-48"><span class="cite-bracket">[</span>48<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Ben_Kingsley" title="Ben Kingsley">Ben Kingsley</a>,<sup id="cite_ref-49" class="reference"><a href="#cite_note-49"><span class="cite-bracket">[</span>49<span class="cite-bracket">]</span></a></sup> and <a href="/wiki/Jason_Statham" title="Jason Statham">Jason Statham</a>.<sup id="cite_ref-50" class="reference"><a href="#cite_note-50"><span class="cite-bracket">[</span>50<span class="cite-bracket">]</span></a></sup> Female baldness is still viewed as less normal in various parts of the world.<sup id="cite_ref-51" class="reference"><a href="#cite_note-51"><span class="cite-bracket">[</span>51<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-52" class="reference"><a href="#cite_note-52"><span class="cite-bracket">[</span>52<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Alternative_medicine">Alternative medicine</h3></div> <p>Dietary supplements are not typically recommended.<sup id="cite_ref-Roger2008_32-3" class="reference"><a href="#cite_note-Roger2008-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup> There is only one small trial of <a href="/wiki/Saw_palmetto" class="mw-redirect" title="Saw palmetto">saw palmetto</a> which shows tentative benefit in those with mild to moderate androgenetic alopecia.<sup id="cite_ref-Roger2008_32-4" class="reference"><a href="#cite_note-Roger2008-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup> There is no evidence for <a href="/wiki/Biotin" title="Biotin">biotin</a>.<sup id="cite_ref-Roger2008_32-5" class="reference"><a href="#cite_note-Roger2008-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup> Evidence for most other alternative medicine remedies is also insufficient.<sup id="cite_ref-Blu2011_53-0" class="reference"><a href="#cite_note-Blu2011-53"><span class="cite-bracket">[</span>53<span class="cite-bracket">]</span></a></sup> There was no good evidence for <a href="/wiki/Ginkgo" title="Ginkgo">ginkgo</a>, <a href="/wiki/Aloe_vera" title="Aloe vera">aloe vera</a>, <a href="/wiki/Ginseng" title="Ginseng">ginseng</a>, <a href="/wiki/Bergamot_essential_oil" title="Bergamot essential oil">bergamot</a>, <a href="/wiki/Hibiscus" title="Hibiscus">hibiscus</a>, or <a href="/wiki/Sophora" title="Sophora">sophora</a> as of 2011.<sup id="cite_ref-Blu2011_53-1" class="reference"><a href="#cite_note-Blu2011-53"><span class="cite-bracket">[</span>53<span class="cite-bracket">]</span></a></sup> </p><p>Many people use unproven treatments to treat hair loss.<sup id="cite_ref-Ban2013_31-2" class="reference"><a href="#cite_note-Ban2013-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Egg_oil" title="Egg oil">Egg oil</a>, in Indian,<sup id="cite_ref-54" class="reference"><a href="#cite_note-54"><span class="cite-bracket">[</span>54<span class="cite-bracket">]</span></a></sup> Japanese, <a href="/wiki/Unani" class="mw-redirect" title="Unani">Unani</a> (Roghan Baiza Murgh)<sup id="cite_ref-55" class="reference"><a href="#cite_note-55"><span class="cite-bracket">[</span>55<span class="cite-bracket">]</span></a></sup> and Chinese<sup id="cite_ref-56" class="reference"><a href="#cite_note-56"><span class="cite-bracket">[</span>56<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Traditional_medicine" title="Traditional medicine">traditional medicine</a>, was traditionally used as a treatment for hair loss.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Identifying_reliable_sources_(medicine)" title="Wikipedia:Identifying reliable sources (medicine)"><span title="Material near this tag needs references to reliable medical sources. (October 2015)">medical citation needed</span></a></i>]</sup> </p> <div class="mw-heading mw-heading2"><h2 id="Research">Research</h2></div> <p>Research is looking into connections between hair loss and other health issues. While there has been speculation about a connection between early-onset male pattern hair loss and heart disease, a review of articles from 1954 to 1999 found no conclusive connection between baldness and coronary artery disease. The dermatologists who conducted the review suggested further study was needed.<sup id="cite_ref-57" class="reference"><a href="#cite_note-57"><span class="cite-bracket">[</span>57<span class="cite-bracket">]</span></a></sup> </p><p>Environmental factors are under review. A 2007 study indicated that smoking may be a factor associated with age-related hair loss among Asian men. The study controlled for age and family history, and found statistically significant positive associations between moderate or severe male pattern hair loss and smoking status.<sup id="cite_ref-58" class="reference"><a href="#cite_note-58"><span class="cite-bracket">[</span>58<span class="cite-bracket">]</span></a></sup> </p><p>Vertex baldness is associated with an increased risk of <a href="/wiki/Coronary_heart_disease" class="mw-redirect" title="Coronary heart disease">coronary heart disease</a> (CHD) and the relationship depends upon the severity of baldness, while frontal baldness is not. Thus, vertex baldness might be a marker of CHD and is more closely associated with atherosclerosis than frontal baldness.<sup id="cite_ref-Yamada_et_al_2013_28-1" class="reference"><a href="#cite_note-Yamada_et_al_2013-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Hair_follicle_aging">Hair follicle aging</h3></div> <p>A key aspect of hair loss with age is the aging of the hair follicle.<sup id="cite_ref-pmid26912687_59-0" class="reference"><a href="#cite_note-pmid26912687-59"><span class="cite-bracket">[</span>59<span class="cite-bracket">]</span></a></sup> Ordinarily, hair follicle renewal is maintained by the stem cells associated with each follicle. Aging of the hair follicle appears to be primed by a sustained cellular response to the DNA damage that accumulates in renewing stem cells during aging.<sup id="cite_ref-pmid26912707_60-0" class="reference"><a href="#cite_note-pmid26912707-60"><span class="cite-bracket">[</span>60<span class="cite-bracket">]</span></a></sup> This damage response involves the proteolysis of <a href="/wiki/Collagen,_type_XVII,_alpha_1" title="Collagen, type XVII, alpha 1">type XVII collagen</a> by <a href="/wiki/Neutrophil_elastase" title="Neutrophil elastase">neutrophil elastase</a> in response to DNA damage in hair follicle stem cells. Proteolysis of collagen leads to elimination of the damaged cells and, consequently, to terminal hair follicle miniaturization. </p> <div class="mw-heading mw-heading3"><h3 id="Hedgehog_signaling">Hedgehog signaling</h3></div> <p>In June 2022 the University of California, Irvine announced that researchers have discovered that <a href="/wiki/Hedgehog_signaling" class="mw-redirect" title="Hedgehog signaling">hedgehog signaling</a> in murine fibroblasts induces new hair growth and hair multiplication while hedgehog activation increases fibroblast heterogeneity and drives new cell states.<sup id="cite_ref-61" class="reference"><a href="#cite_note-61"><span class="cite-bracket">[</span>61<span class="cite-bracket">]</span></a></sup> A new signaling molecule called SCUBE3 potently stimulates hair growth and may offer a therapeutic treatment for androgenetic alopecia.<sup id="cite_ref-62" class="reference"><a href="#cite_note-62"><span class="cite-bracket">[</span>62<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Etymology">Etymology</h2></div> <p>The term <i>alopecia</i> (<span class="rt-commentedText nowrap"><span class="IPA nopopups noexcerpt" lang="en-fonipa"><a href="/wiki/Help:IPA/English" title="Help:IPA/English">/<span style="border-bottom:1px dotted"><span title="/ˌ/: secondary stress follows">ˌ</span><span title="/æ/: 'a' in 'bad'">æ</span><span title="'l' in 'lie'">l</span><span title="/ə/: 'a' in 'about'">ə</span><span title="/ˈ/: primary stress follows">ˈ</span><span title="'p' in 'pie'">p</span><span title="/iː/: 'ee' in 'fleece'">iː</span><span title="/ʃ/: 'sh' in 'shy'">ʃ</span><span title="/i/: 'y' in 'happy'">i</span><span title="/ə/: 'a' in 'about'">ə</span></span>/</a></span></span>) is from the <a href="/wiki/Classical_Greek" class="mw-redirect" title="Classical Greek">Classical Greek</a> <a href="https://en.wiktionary.org/wiki/%E1%BC%80%CE%BB%CF%8E%CF%80%CE%B7%CE%BE" class="extiw" title="wikt:ἀλώπηξ">ἀλώπηξ</a>, <i>alōpēx</i>, meaning "fox". The origin of this usage is because this animal sheds its coat twice a year, or because in ancient Greece foxes often lost hair because of <a href="/wiki/Mange" title="Mange">mange</a>. </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2></div> <ul><li><a href="/wiki/Alopecia_in_animals" title="Alopecia in animals">Alopecia in animals</a></li> <li><a href="/wiki/Lichen_planopilaris" class="mw-redirect" title="Lichen planopilaris">Lichen planopilaris</a></li> <li><a href="/wiki/List_of_conditions_caused_by_problems_with_junctional_proteins" class="mw-redirect" title="List of conditions caused by problems with junctional proteins">List of conditions caused by problems with junctional proteins</a></li> <li><a href="/wiki/Locks_of_Love" title="Locks of Love">Locks of Love</a> – charity that provides hair prosthetics to alopecia patients</li> <li><a href="/wiki/Psychogenic_alopecia" title="Psychogenic alopecia">Psychogenic alopecia</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation encyclopaedia cs1"><a rel="nofollow" class="external text" href="https://www.dictionary.com/browse/alopecia">"alopecia"</a>. <i><a href="/wiki/Dictionary.com" title="Dictionary.com">Dictionary.com Unabridged</a></i> (Online). n.d.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=alopecia&rft.btitle=Dictionary.com+Unabridged&rft_id=https%3A%2F%2Fwww.dictionary.com%2Fbrowse%2Falopecia&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHair+loss" class="Z3988"></span></span> </li> <li 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(June 2020)">self-published source?</span></a></i>]</sup></span> </li> <li id="cite_note-52"><span class="mw-cite-backlink"><b><a href="#cite_ref-52">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFRamosMiot2015" class="citation journal cs1">Ramos, Paulo Müller; Miot, Hélio Amante (2015). <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4560543">"Female Pattern Hair Loss: a clinical and pathophysiological review"</a>. <i>Anais Brasileiros de Dermatologia</i>. <b>90</b> (4): <span class="nowrap">529–</span>543. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1590%2Fabd1806-4841.20153370">10.1590/abd1806-4841.20153370</a>. <a href="/wiki/PMC_(identifier)" class="mw-redirect" title="PMC (identifier)">PMC</a> <span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4560543">4560543</a></span>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/26375223">26375223</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Anais+Brasileiros+de+Dermatologia&rft.atitle=Female+Pattern+Hair+Loss%3A+a+clinical+and+pathophysiological+review&rft.volume=90&rft.issue=4&rft.pages=%3Cspan+class%3D%22nowrap%22%3E529-%3C%2Fspan%3E543&rft.date=2015&rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC4560543%23id-name%3DPMC&rft_id=info%3Apmid%2F26375223&rft_id=info%3Adoi%2F10.1590%2Fabd1806-4841.20153370&rft.aulast=Ramos&rft.aufirst=Paulo+M%C3%BCller&rft.au=Miot%2C+H%C3%A9lio+Amante&rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC4560543&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHair+loss" class="Z3988"></span></span> </li> <li id="cite_note-Blu2011-53"><span class="mw-cite-backlink">^ <a href="#cite_ref-Blu2011_53-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Blu2011_53-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBlumeyerTostiMessengerReygagne2011" class="citation journal cs1">Blumeyer, A; Tosti, A; Messenger, A; Reygagne, P; Del Marmol, V; Spuls, PI; Trakatelli, M; Finner, A; Kiesewetter, F; Trüeb, R; Rzany, B; Blume-Peytavi, U; European Dermatology Forum, (EDF) (October 2011). 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Aging, alopecia, and stem cells"</a>. <i>Science</i>. <b>351</b> (6273): <span class="nowrap">559–</span>560. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2016Sci...351..559L">2016Sci...351..559L</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.1126%2Fscience.aaf1635">10.1126/science.aaf1635</a></span>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/26912687">26912687</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Science&rft.atitle=STEM+CELLS.+Aging%2C+alopecia%2C+and+stem+cells&rft.volume=351&rft.issue=6273&rft.pages=%3Cspan+class%3D%22nowrap%22%3E559-%3C%2Fspan%3E560&rft.date=2016&rft_id=info%3Apmid%2F26912687&rft_id=info%3Adoi%2F10.1126%2Fscience.aaf1635&rft_id=info%3Abibcode%2F2016Sci...351..559L&rft.aulast=Lei&rft.aufirst=M&rft.au=Chuong%2C+CM&rft_id=https%3A%2F%2Fdoi.org%2F10.1126%252Fscience.aaf1635&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHair+loss" class="Z3988"></span></span> </li> <li id="cite_note-pmid26912707-60"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid26912707_60-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFMatsumuraMohriBinhMorinaga2016" class="citation journal cs1">Matsumura H, Mohri Y, Binh NT, Morinaga H, Fukuda M, Ito M, Kurata S, Hoeijmakers J, Nishimura EK (2016). 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title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Science&rft.atitle=Hair+follicle+aging+is+driven+by+transepidermal+elimination+of+stem+cells+via+COL17A1+proteolysis&rft.volume=351&rft.issue=6273&rft.pages=aad4395&rft.date=2016&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A5078019%23id-name%3DS2CID&rft_id=info%3Apmid%2F26912707&rft_id=info%3Adoi%2F10.1126%2Fscience.aad4395&rft.aulast=Matsumura&rft.aufirst=H&rft.au=Mohri%2C+Y&rft.au=Binh%2C+NT&rft.au=Morinaga%2C+H&rft.au=Fukuda%2C+M&rft.au=Ito%2C+M&rft.au=Kurata%2C+S&rft.au=Hoeijmakers%2C+J&rft.au=Nishimura%2C+EK&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHair+loss" class="Z3988"></span></span> </li> <li id="cite_note-61"><span class="mw-cite-backlink"><b><a href="#cite_ref-61">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLiu2022" class="citation journal cs1">Liu, Yingzi (30 June 2022). <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9344965">"Hedgehog signaling reprograms hair follicle niche fibroblasts to a hyper-activated state"</a>. <i>Developmental Cell</i>. <b>57</b> (14): 1758–1775.e7. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2Fj.devcel.2022.06.005">10.1016/j.devcel.2022.06.005</a>. <a href="/wiki/PMC_(identifier)" class="mw-redirect" title="PMC (identifier)">PMC</a> <span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9344965">9344965</a></span>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/35777353">35777353</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:250203913">250203913</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Developmental+Cell&rft.atitle=Hedgehog+signaling+reprograms+hair+follicle+niche+fibroblasts+to+a+hyper-activated+state&rft.volume=57&rft.issue=14&rft.pages=1758-1775.e7&rft.date=2022-06-30&rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC9344965%23id-name%3DPMC&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A250203913%23id-name%3DS2CID&rft_id=info%3Apmid%2F35777353&rft_id=info%3Adoi%2F10.1016%2Fj.devcel.2022.06.005&rft.aulast=Liu&rft.aufirst=Yingzi&rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC9344965&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHair+loss" class="Z3988"></span></span> </li> <li id="cite_note-62"><span class="mw-cite-backlink"><b><a href="#cite_ref-62">^</a></b></span> <span 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href="/wiki/File:Commons-logo.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/12px-Commons-logo.svg.png" decoding="async" width="12" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/24px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span> Media related to <a href="https://commons.wikimedia.org/wiki/Category:Baldness" class="extiw" title="commons:Category:Baldness">Baldness</a> at Wikimedia Commons</li> <li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Wiktionary-logo-en-v2.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/99/Wiktionary-logo-en-v2.svg/16px-Wiktionary-logo-en-v2.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/99/Wiktionary-logo-en-v2.svg/24px-Wiktionary-logo-en-v2.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/99/Wiktionary-logo-en-v2.svg/32px-Wiktionary-logo-en-v2.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span> The dictionary definition of <a href="https://en.wiktionary.org/wiki/Special:Search/hair_loss" class="extiw" title="wiktionary:Special:Search/hair loss"><i>hair loss</i></a> at Wiktionary</li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1236075235">.mw-parser-output .navbox{box-sizing:border-box;border:1px solid #a2a9b1;width:100%;clear:both;font-size:88%;text-align:center;padding:1px;margin:1em auto 0}.mw-parser-output .navbox .navbox{margin-top:0}.mw-parser-output .navbox+.navbox,.mw-parser-output .navbox+.navbox-styles+.navbox{margin-top:-1px}.mw-parser-output .navbox-inner,.mw-parser-output .navbox-subgroup{width:100%}.mw-parser-output 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dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li{display:none}.mw-parser-output .hlist dt::after{content:": "}.mw-parser-output .hlist dd::after,.mw-parser-output .hlist li::after{content:" · ";font-weight:bold}.mw-parser-output .hlist dd:last-child::after,.mw-parser-output .hlist dt:last-child::after,.mw-parser-output .hlist li:last-child::after{content:none}.mw-parser-output .hlist dd dd:first-child::before,.mw-parser-output .hlist dd dt:first-child::before,.mw-parser-output .hlist dd li:first-child::before,.mw-parser-output .hlist dt dd:first-child::before,.mw-parser-output .hlist dt dt:first-child::before,.mw-parser-output .hlist dt li:first-child::before,.mw-parser-output .hlist li dd:first-child::before,.mw-parser-output .hlist li dt:first-child::before,.mw-parser-output .hlist li li:first-child::before{content:" (";font-weight:normal}.mw-parser-output .hlist dd dd:last-child::after,.mw-parser-output .hlist dd dt:last-child::after,.mw-parser-output .hlist dd li:last-child::after,.mw-parser-output .hlist dt dd:last-child::after,.mw-parser-output .hlist dt dt:last-child::after,.mw-parser-output .hlist dt li:last-child::after,.mw-parser-output .hlist li dd:last-child::after,.mw-parser-output .hlist li dt:last-child::after,.mw-parser-output .hlist li li:last-child::after{content:")";font-weight:normal}.mw-parser-output .hlist ol{counter-reset:listitem}.mw-parser-output .hlist ol>li{counter-increment:listitem}.mw-parser-output .hlist ol>li::before{content:" "counter(listitem)"\a0 "}.mw-parser-output .hlist dd ol>li:first-child::before,.mw-parser-output .hlist dt ol>li:first-child::before,.mw-parser-output .hlist li ol>li:first-child::before{content:" ("counter(listitem)"\a0 "}</style><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"></div><div role="navigation" class="navbox" aria-label="Navbox32" style="width:100%; margin:0.5em 0 0.5em 0;;padding:3px"><table class="nowraplinks navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;background: #EAECF0;color:black;">Classification</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><div style="position:relative; float:right; font-size:0.8em;"><a href="https://www.wikidata.org/wiki/Q181391" class="extiw" title="d:Q181391">D</a></div><div class="hlist" style="text-align:left;"><ul><li><b><a href="/wiki/International_Statistical_Classification_of_Diseases_and_Related_Health_Problems" class="mw-redirect" title="International Statistical Classification of Diseases and Related Health Problems">ICD</a>-<a href="/wiki/ICD-10" title="ICD-10">10</a></b>: <a rel="nofollow" class="external text" href="https://icd.who.int/browse10/2019/en#/L65.9">L65.9</a></li><li><b><a href="/wiki/International_Statistical_Classification_of_Diseases_and_Related_Health_Problems" class="mw-redirect" title="International Statistical Classification of Diseases and Related Health Problems">ICD</a>-<a href="/wiki/List_of_ICD-9_codes" title="List of ICD-9 codes">9-CM</a></b>: <a rel="nofollow" class="external text" href="http://www.icd9data.com/getICD9Code.ashx?icd9=704.09">704.09</a></li><li><b><a href="/wiki/Medical_Subject_Headings" title="Medical Subject Headings">MeSH</a></b>: <a rel="nofollow" class="external text" href="https://meshb.nlm.nih.gov/record/ui?ui=D000505">D000505</a></li><li><b><a href="/wiki/Diseases_Database" title="Diseases Database">DiseasesDB</a></b>: <a rel="nofollow" class="external text" href="http://www.diseasesdatabase.com/ddb14765.htm">14765</a></li></ul></div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background: #EAECF0;color:black;">External resources</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"><div class="hlist" style="text-align:left;"><ul><li><b><a href="/wiki/MedlinePlus" title="MedlinePlus">MedlinePlus</a></b>: <a rel="nofollow" class="external text" href="https://www.nlm.nih.gov/medlineplus/ency/article/003246.htm">003246</a></li></ul></div></div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Disorders_of_skin_appendages114" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Disorders_of_skin_appendages" title="Template:Disorders of skin appendages"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Disorders_of_skin_appendages" title="Template talk:Disorders of skin appendages"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Disorders_of_skin_appendages" title="Special:EditPage/Template:Disorders of skin appendages"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Disorders_of_skin_appendages114" style="font-size:114%;margin:0 4em">Disorders of <a href="/wiki/Skin_appendage" title="Skin appendage">skin appendages</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Nail_disease" title="Nail disease">Nail</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>thickness: <a href="/wiki/Onychogryphosis" title="Onychogryphosis">Onychogryphosis</a></li> <li><a href="/wiki/Onychauxis" title="Onychauxis">Onychauxis</a></li></ul> <ul><li>color: <a href="/wiki/Beau%27s_lines" title="Beau's lines">Beau's lines</a></li> <li><a href="/wiki/Yellow_nail_syndrome" title="Yellow nail syndrome">Yellow nail syndrome</a></li> <li><a href="/wiki/Leukonychia" title="Leukonychia">Leukonychia</a></li> <li><a href="/wiki/Blue_nails" title="Blue nails">Azure lunula</a></li></ul> <ul><li>shape: <a href="/wiki/Koilonychia" title="Koilonychia">Koilonychia</a></li> <li><a href="/wiki/Nail_clubbing" title="Nail clubbing">Nail clubbing</a></li></ul> <ul><li>behavior: <a href="/wiki/Onychotillomania" title="Onychotillomania">Onychotillomania</a></li> <li><a href="/wiki/Onychophagia" class="mw-redirect" title="Onychophagia">Onychophagia</a></li></ul> <ul><li>other: <a href="/wiki/Ingrown_nail" title="Ingrown nail">Ingrown nail</a></li> <li><a href="/wiki/Anonychia" title="Anonychia">Anonychia</a></li></ul> <ul><li>ungrouped: <a href="/wiki/Paronychia" title="Paronychia">Paronychia</a> <ul><li><a href="/wiki/Acute_paronychia" class="mw-redirect" title="Acute paronychia">Acute</a></li> <li><a href="/wiki/Chronic_paronychia" class="mw-redirect" title="Chronic paronychia">Chronic</a></li></ul></li> <li><a href="/wiki/Chevron_nail" title="Chevron nail">Chevron nail</a></li> <li><a href="/wiki/Congenital_onychodysplasia_of_the_index_fingers" title="Congenital onychodysplasia of the index fingers">Congenital onychodysplasia of the index fingers</a></li> <li><a href="/wiki/Green_nails" class="mw-redirect" title="Green nails">Green nails</a></li> <li><a href="/wiki/Half_and_half_nail" title="Half and half nail">Half and half nails</a></li> <li><a href="/wiki/Hangnail" title="Hangnail">Hangnail</a></li> <li><a href="/wiki/Hapalonychia" title="Hapalonychia">Hapalonychia</a></li> <li><a href="/wiki/Hook_nail" title="Hook nail">Hook nail</a></li> <li><a href="/wiki/Ingrown_nail" title="Ingrown nail">Ingrown nail</a></li> <li><a href="/wiki/Lichen_planus_of_the_nails" class="mw-redirect" title="Lichen planus of the nails">Lichen planus of the nails</a></li> <li><a href="/wiki/Longitudinal_erythronychia" title="Longitudinal erythronychia">Longitudinal erythronychia</a></li> <li><a href="/wiki/Malalignment_of_the_nail_plate" title="Malalignment of the nail plate">Malalignment of the nail plate</a></li> <li><a href="/wiki/Median_nail_dystrophy" title="Median nail dystrophy">Median nail dystrophy</a></li> <li><a href="/wiki/Mees%27_lines" title="Mees' lines">Mees' lines</a></li> <li><a href="/wiki/Melanonychia" title="Melanonychia">Melanonychia</a></li> <li><a href="/wiki/Muehrcke%27s_lines" class="mw-redirect" title="Muehrcke's lines">Muehrcke's lines</a></li> <li><a href="/wiki/Nail%E2%80%93patella_syndrome" title="Nail–patella syndrome">Nail–patella syndrome</a></li> <li><a href="/wiki/Onychoatrophy" title="Onychoatrophy">Onychoatrophy</a></li> <li><a href="/wiki/Onycholysis" title="Onycholysis">Onycholysis</a></li> <li><a href="/wiki/Onychomadesis" title="Onychomadesis">Onychomadesis</a></li> <li><a href="/wiki/Onychomatricoma" title="Onychomatricoma">Onychomatricoma</a></li> <li><a href="/wiki/Onychomycosis" title="Onychomycosis">Onychomycosis</a></li> <li><a href="/wiki/Onychophosis" title="Onychophosis">Onychophosis</a></li> <li><a href="/wiki/Onychoptosis_defluvium" class="mw-redirect" title="Onychoptosis defluvium">Onychoptosis defluvium</a></li> <li><a href="/wiki/Onychorrhexis" title="Onychorrhexis">Onychorrhexis</a></li> <li><a href="/wiki/Onychoschizia" title="Onychoschizia">Onychoschizia</a></li> <li><a href="/wiki/Platonychia" title="Platonychia">Platonychia</a></li> <li><a href="/wiki/Pincer_nail" title="Pincer nail">Pincer nails</a></li> <li><a href="/wiki/Plummer%27s_nail" class="mw-redirect" title="Plummer's nail">Plummer's nail</a></li> <li><a href="/wiki/Psoriatic_nails" class="mw-redirect" title="Psoriatic nails">Psoriatic nails</a></li> <li><a href="/wiki/Pterygium_inversum_unguis" title="Pterygium inversum unguis">Pterygium inversum unguis</a></li> <li><a href="/wiki/Pterygium_unguis" title="Pterygium unguis">Pterygium unguis</a></li> <li><a href="/wiki/Purpura_of_the_nail_bed" class="mw-redirect" title="Purpura of the nail bed">Purpura of the nail bed</a></li> <li><a href="/wiki/Racquet_nail" title="Racquet nail">Racquet nail</a></li> <li><a href="/wiki/Red_lunulae" title="Red lunulae">Red lunulae</a></li> <li><a href="/wiki/Shell_nail_syndrome" title="Shell nail syndrome">Shell nail syndrome</a></li> <li><a href="/wiki/Splinter_hemorrhage" title="Splinter hemorrhage">Splinter hemorrhage</a></li> <li><a href="/wiki/Spotted_lunulae" title="Spotted lunulae">Spotted lunulae</a></li> <li><a href="/wiki/Staining_of_the_nail_plate" title="Staining of the nail plate">Staining of the nail plate</a></li> <li><a href="/wiki/Subungual_hematoma" title="Subungual hematoma">Subungual hematoma</a></li> <li><a href="/wiki/Terry%27s_nails" title="Terry's nails">Terry's nails</a></li> <li><a href="/wiki/Twenty-nail_dystrophy" class="mw-redirect" title="Twenty-nail dystrophy">Twenty-nail dystrophy</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Hair_disease" title="Hair disease">Hair</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a class="mw-selflink selflink">Hair loss</a>/<br /><a href="/wiki/Baldness" class="mw-redirect" title="Baldness">Baldness</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Noncicatricial_alopecia" class="mw-redirect" title="Noncicatricial alopecia">noncicatricial alopecia</a>:</i> <a class="mw-selflink selflink">Alopecia</a> <ul><li><a href="/wiki/Alopecia_areata" title="Alopecia areata">areata</a></li> <li><a href="/wiki/Alopecia_totalis" title="Alopecia totalis">totalis</a></li> <li><a href="/wiki/Alopecia_universalis" title="Alopecia universalis">universalis</a></li> <li><a href="/wiki/Ophiasis" title="Ophiasis">Ophiasis</a></li></ul></li></ul> <ul><li><a href="/wiki/Androgenic_alopecia" class="mw-redirect" title="Androgenic alopecia">Androgenic alopecia</a> (male-pattern baldness)</li> <li><a href="/wiki/Hypotrichosis" class="mw-redirect" title="Hypotrichosis">Hypotrichosis</a></li> <li><a href="/wiki/Telogen_effluvium" title="Telogen effluvium">Telogen effluvium</a></li> <li><a href="/wiki/Traction_alopecia" title="Traction alopecia">Traction alopecia</a></li> <li><a href="/wiki/Lichen_planopilaris" class="mw-redirect" title="Lichen planopilaris">Lichen planopilaris</a></li> <li><a href="/wiki/Trichorrhexis_nodosa" title="Trichorrhexis nodosa">Trichorrhexis nodosa</a></li> <li><a href="/wiki/Alopecia_neoplastica" title="Alopecia neoplastica">Alopecia neoplastica</a></li> <li><a href="/wiki/Anagen_effluvium" title="Anagen effluvium">Anagen effluvium</a></li> <li><a href="/wiki/Alopecia_mucinosa" title="Alopecia mucinosa">Alopecia mucinosa</a></li></ul> <ul><li><i><a href="/wiki/Cicatricial_alopecia" class="mw-redirect" title="Cicatricial alopecia">cicatricial alopecia</a>:</i> <a href="/wiki/Pseudopelade_of_Brocq" title="Pseudopelade of Brocq">Pseudopelade of Brocq</a></li> <li><a href="/wiki/Central_centrifugal_cicatricial_alopecia" title="Central centrifugal cicatricial alopecia">Central centrifugal cicatricial alopecia</a></li> <li><a href="/wiki/Pressure_alopecia" title="Pressure alopecia">Pressure alopecia</a></li> <li><a href="/wiki/Traumatic_alopecia" title="Traumatic alopecia">Traumatic alopecia</a></li> <li><a href="/wiki/Tumor_alopecia" class="mw-redirect" title="Tumor alopecia">Tumor alopecia</a></li> <li><a href="/wiki/Hot_comb_alopecia" class="mw-redirect" title="Hot comb alopecia">Hot comb alopecia</a></li> <li><a href="/wiki/Dissecting_cellulitis_of_the_scalp" title="Dissecting cellulitis of the scalp">Dissecting cellulitis of the scalp</a></li> <li><a href="/wiki/Graham-Little_syndrome" title="Graham-Little syndrome">Graham-Little syndrome</a></li> <li><a href="/wiki/Folliculitis_decalvans" title="Folliculitis decalvans">Folliculitis decalvans</a></li></ul> <ul><li><i>ungrouped:</i> <a href="/wiki/Triangular_alopecia" title="Triangular alopecia">Triangular alopecia</a></li> <li><a href="/wiki/Frontal_fibrosing_alopecia" title="Frontal fibrosing alopecia">Frontal fibrosing alopecia</a></li> <li><a href="/wiki/Marie_Unna_hereditary_hypotrichosis" title="Marie Unna hereditary hypotrichosis">Marie Unna hereditary hypotrichosis</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Hypertrichosis" title="Hypertrichosis">Hypertrichosis</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Hirsutism" title="Hirsutism">Hirsutism</a></li> <li>Acquired <ul><li><a href="/wiki/Localized_acquired_hypertrichosis" class="mw-redirect" title="Localized acquired hypertrichosis">localised</a></li> <li><a href="/wiki/Acquired_generalized_hypertrichosis" class="mw-redirect" title="Acquired generalized hypertrichosis">generalised</a></li> <li><a href="/wiki/Patterned_acquired_hypertrichosis" class="mw-redirect" title="Patterned acquired hypertrichosis">patterned</a></li></ul></li> <li>Congenital <ul><li><a href="/wiki/Generalized_congenital_hypertrichosis" class="mw-redirect" title="Generalized congenital hypertrichosis">generalised</a></li> <li><a href="/wiki/Localized_congenital_hypertrichosis" class="mw-redirect" title="Localized congenital hypertrichosis">localised</a></li> <li><a href="/wiki/X-linked_hypertrichosis" title="X-linked hypertrichosis">X-linked</a></li></ul></li> <li><a href="/wiki/Prepubertal_hypertrichosis" title="Prepubertal hypertrichosis">Prepubertal</a></li> <li><a href="/wiki/Nevoid_hypertrichosis" title="Nevoid hypertrichosis">Nevoid hypertrichosis</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Acneiform_eruption" title="Acneiform eruption">Acneiform<br />eruption</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Acneiform_eruption" title="Acneiform eruption">Acne</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Acne_vulgaris" class="mw-redirect" title="Acne vulgaris">Acne vulgaris</a></li> <li><a href="/wiki/Acne_conglobata" title="Acne conglobata">Acne conglobata</a></li> <li><a href="/wiki/Acne_miliaris_necrotica" title="Acne miliaris necrotica">Acne miliaris necrotica</a></li> <li><a href="/wiki/Tropical_acne" title="Tropical acne">Tropical acne</a></li> <li><a href="/wiki/Infantile_acne" title="Infantile acne">Infantile acne</a>/<a href="/wiki/Neonatal_acne" title="Neonatal acne">Neonatal acne</a></li> <li><a href="/wiki/Excoriated_acne" title="Excoriated acne">Excoriated acne</a></li> <li><a href="/wiki/Acne_fulminans" title="Acne fulminans">Acne fulminans</a></li> <li><a href="/wiki/Acne_medicamentosa" title="Acne medicamentosa">Acne medicamentosa</a> (e.g., <a href="/wiki/Steroid_acne" title="Steroid acne">steroid acne</a>)</li> <li><a href="/wiki/Halogen_acne" title="Halogen acne">Halogen acne</a> <ul><li><a href="/wiki/Iododerma" title="Iododerma">Iododerma</a></li> <li><a href="/wiki/Bromoderma" title="Bromoderma">Bromoderma</a></li> <li><a href="/wiki/Chloracne" title="Chloracne">Chloracne</a></li></ul></li> <li><a href="/wiki/Oil_acne" title="Oil acne">Oil acne</a></li> <li><a href="/wiki/Tar_acne" title="Tar acne">Tar acne</a></li> <li><a href="/wiki/Acne_cosmetica" title="Acne cosmetica">Acne cosmetica</a></li> <li><a href="/wiki/Occupational_acne" title="Occupational acne">Occupational acne</a></li> <li><a href="/wiki/Acne_aestivalis" title="Acne aestivalis">Acne aestivalis</a></li> <li><a href="/wiki/Acne_keloidalis_nuchae" title="Acne keloidalis nuchae">Acne keloidalis nuchae</a></li> <li><a href="/wiki/Acne_mechanica" title="Acne mechanica">Acne mechanica</a></li> <li><a href="/wiki/Acne_with_facial_edema" title="Acne with facial edema">Acne with facial edema</a></li> <li><a href="/wiki/Pomade_acne" title="Pomade acne">Pomade acne</a></li> <li><a href="/wiki/Acne_necrotica" title="Acne necrotica">Acne necrotica</a></li> <li><a href="/wiki/Blackhead" class="mw-redirect" title="Blackhead">Blackhead</a></li> <li><a href="/wiki/Lupus_miliaris_disseminatus_faciei" title="Lupus miliaris disseminatus faciei">Lupus miliaris disseminatus faciei</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Rosacea" title="Rosacea">Rosacea</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Perioral_dermatitis" title="Perioral dermatitis">Perioral dermatitis</a> <ul><li><a href="/wiki/Granulomatous_perioral_dermatitis" class="mw-redirect" title="Granulomatous perioral dermatitis">Granulomatous perioral dermatitis</a></li></ul></li> <li><a href="/wiki/Phymatous_rosacea" class="mw-redirect" title="Phymatous rosacea">Phymatous rosacea</a> <ul><li><a href="/wiki/Rhinophyma" title="Rhinophyma">Rhinophyma</a></li> <li><a href="/wiki/Blepharophyma" title="Blepharophyma">Blepharophyma</a></li> <li><a href="/wiki/Gnathophyma" title="Gnathophyma">Gnathophyma</a></li> <li><a href="/wiki/Metophyma" title="Metophyma">Metophyma</a></li> <li><a href="/wiki/Otophyma" title="Otophyma">Otophyma</a></li></ul></li> <li><a href="/wiki/Papulopustular_rosacea" class="mw-redirect" title="Papulopustular rosacea">Papulopustular rosacea</a></li> <li><a href="/wiki/Lupoid_rosacea" class="mw-redirect" title="Lupoid rosacea">Lupoid rosacea</a></li> <li><a href="/wiki/Erythrotelangiectatic_rosacea" class="mw-redirect" title="Erythrotelangiectatic rosacea">Erythrotelangiectatic rosacea</a></li> <li><a href="/wiki/Glandular_rosacea" class="mw-redirect" title="Glandular rosacea">Glandular rosacea</a></li> <li><a href="/wiki/Gram-negative_rosacea" title="Gram-negative rosacea">Gram-negative rosacea</a></li> <li><a href="/wiki/Steroid_rosacea" title="Steroid rosacea">Steroid rosacea</a></li> <li><a href="/wiki/Ocular_rosacea" title="Ocular rosacea">Ocular rosacea</a></li> <li><a href="/wiki/Persistent_edema_of_rosacea" title="Persistent edema of rosacea">Persistent edema of rosacea</a></li> <li><a href="/wiki/Rosacea_conglobata" class="mw-redirect" title="Rosacea conglobata">Rosacea conglobata</a></li> <li><i>variants</i> <ul><li><a href="/wiki/Periorificial_dermatitis" class="mw-redirect" title="Periorificial dermatitis">Periorificial dermatitis</a></li> <li><a href="/wiki/Pyoderma_faciale" class="mw-redirect" title="Pyoderma faciale">Pyoderma faciale</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Ungrouped</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Granulomatous_facial_dermatitis" title="Granulomatous facial dermatitis">Granulomatous facial dermatitis</a></li> <li><a href="/wiki/Idiopathic_facial_aseptic_granuloma" title="Idiopathic facial aseptic granuloma">Idiopathic facial aseptic granuloma</a></li> <li><a href="/wiki/Periorbital_dermatitis" title="Periorbital dermatitis">Periorbital dermatitis</a></li> <li><a href="/wiki/SAPHO_syndrome" title="SAPHO syndrome">SAPHO syndrome</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Follicular <a href="/wiki/Cyst" title="Cyst">cysts</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>"<a href="/wiki/Sebaceous_cyst" title="Sebaceous cyst">Sebaceous cyst</a>" <ul><li><a href="/wiki/Epidermoid_cyst" title="Epidermoid cyst">Epidermoid cyst</a></li> <li><a href="/wiki/Trichilemmal_cyst" title="Trichilemmal cyst">Trichilemmal cyst</a></li></ul></li> <li>Steatocystoma <ul><li><a href="/wiki/Steatocystoma_simplex" title="Steatocystoma simplex">simplex</a></li> <li><a href="/wiki/Steatocystoma_multiplex" title="Steatocystoma multiplex">multiplex</a></li></ul></li> <li><a href="/wiki/Milium_(dermatology)" title="Milium (dermatology)">Milia</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Inflammation" title="Inflammation">Inflammation</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Folliculitis" title="Folliculitis">Folliculitis</a> <ul><li><a href="/wiki/Folliculitis_nares_perforans" class="mw-redirect" title="Folliculitis nares perforans">Folliculitis nares perforans</a></li> <li><a href="/wiki/Tufted_folliculitis" title="Tufted folliculitis">Tufted folliculitis</a></li></ul></li> <li><a href="/wiki/Pseudofolliculitis_barbae" title="Pseudofolliculitis barbae">Pseudofolliculitis barbae</a></li></ul> <ul><li><a href="/wiki/Hidradenitis" title="Hidradenitis">Hidradenitis</a> <ul><li><a href="/wiki/Hidradenitis_suppurativa" title="Hidradenitis suppurativa">Hidradenitis suppurativa</a></li> <li><a href="/wiki/Recurrent_palmoplantar_hidradenitis" title="Recurrent palmoplantar hidradenitis">Recurrent palmoplantar hidradenitis</a></li> <li><a href="/wiki/Neutrophilic_eccrine_hidradenitis" title="Neutrophilic eccrine hidradenitis">Neutrophilic eccrine hidradenitis</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Ungrouped</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Acrokeratosis_paraneoplastica_of_Bazex" class="mw-redirect" title="Acrokeratosis paraneoplastica of Bazex">Acrokeratosis paraneoplastica of Bazex</a></li> <li><a href="/wiki/Acroosteolysis" title="Acroosteolysis">Acroosteolysis</a></li> <li><a href="/wiki/Bubble_hair_deformity" title="Bubble hair deformity">Bubble hair deformity</a></li> <li><a href="/wiki/Disseminate_and_recurrent_infundibulofolliculitis" title="Disseminate and recurrent infundibulofolliculitis">Disseminate and recurrent infundibulofolliculitis</a></li> <li><a href="/wiki/Erosive_pustular_dermatosis_of_the_scalp" title="Erosive pustular dermatosis of the scalp">Erosive pustular dermatosis of the scalp</a></li> <li><a href="/wiki/Erythromelanosis_follicularis_faciei_et_colli" title="Erythromelanosis follicularis faciei et colli">Erythromelanosis follicularis faciei et colli</a></li> <li><a href="/wiki/Hair_casts" title="Hair casts">Hair casts</a></li> <li><a href="/wiki/Hair_follicle_nevus" title="Hair follicle nevus">Hair follicle nevus</a></li> <li>Intermittent hair–follicle dystrophy</li> <li><a href="/wiki/Keratosis_pilaris_atropicans" class="mw-redirect" title="Keratosis pilaris atropicans">Keratosis pilaris atropicans</a></li> <li><a href="/wiki/Kinking_hair" title="Kinking hair">Kinking hair</a></li> <li><a href="/wiki/Koenen%27s_tumor" title="Koenen's tumor">Koenen's tumor</a></li> <li><a href="/wiki/Lichen_planopilaris" class="mw-redirect" title="Lichen planopilaris">Lichen planopilaris</a></li> <li><a href="/wiki/Lichen_spinulosus" title="Lichen spinulosus">Lichen spinulosus</a></li> <li><a href="/wiki/Loose_anagen_syndrome" title="Loose anagen syndrome">Loose anagen syndrome</a></li> <li><a href="/wiki/Menkes_kinky_hair_syndrome" class="mw-redirect" title="Menkes kinky hair syndrome">Menkes kinky hair syndrome</a></li> <li><a href="/wiki/Monilethrix" title="Monilethrix">Monilethrix</a></li> <li><a href="/wiki/Parakeratosis_pustulosa" title="Parakeratosis pustulosa">Parakeratosis pustulosa</a></li> <li>Pili (<a href="/wiki/Pili_annulati" title="Pili annulati">Pili annulati</a></li> <li><a href="/wiki/Pili_bifurcati" title="Pili bifurcati">Pili bifurcati</a></li> <li><a href="/wiki/Pili_multigemini" title="Pili multigemini">Pili multigemini</a></li> <li><a href="/wiki/Pili_pseudoannulati" class="mw-redirect" title="Pili pseudoannulati">Pili pseudoannulati</a></li> <li><a href="/wiki/Pili_torti" title="Pili torti">Pili torti</a>)</li> <li><a href="/wiki/Pityriasis_amiantacea" title="Pityriasis amiantacea">Pityriasis amiantacea</a></li> <li><a href="/wiki/Plica_neuropathica" title="Plica neuropathica">Plica neuropathica</a></li> <li><a href="/wiki/Poliosis" title="Poliosis">Poliosis</a></li> <li><a href="/wiki/Rubinstein%E2%80%93Taybi_syndrome" title="Rubinstein–Taybi syndrome">Rubinstein–Taybi syndrome</a></li> <li><a href="/wiki/Setleis_syndrome" title="Setleis syndrome">Setleis syndrome</a></li> <li><a href="/wiki/Traumatic_anserine_folliculosis" title="Traumatic anserine folliculosis">Traumatic anserine folliculosis</a></li> <li><a href="/wiki/Trichomegaly" title="Trichomegaly">Trichomegaly</a></li> <li><a href="/wiki/Trichomycosis_axillaris" title="Trichomycosis axillaris">Trichomycosis axillaris</a></li> <li>Trichorrhexis (<a href="/wiki/Trichorrhexis_invaginata" title="Trichorrhexis invaginata">Trichorrhexis invaginata</a></li> <li><a href="/wiki/Trichorrhexis_nodosa" title="Trichorrhexis nodosa">Trichorrhexis nodosa</a>)</li> <li><a href="/wiki/Trichostasis_spinulosa" title="Trichostasis spinulosa">Trichostasis spinulosa</a></li> <li><a href="/wiki/Uncombable_hair_syndrome" title="Uncombable hair syndrome">Uncombable hair syndrome</a></li> <li><a href="/wiki/Woolly_hair_nevus" title="Woolly hair nevus">Woolly hair nevus</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Sweat_gland_disease" class="mw-redirect" title="Sweat gland disease">Sweat<br />glands</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Eccrine_sweat_gland" title="Eccrine sweat gland">Eccrine</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Miliaria" title="Miliaria">Miliaria</a> <ul><li><a href="/wiki/Colloid_milium" class="mw-redirect" title="Colloid milium">Colloid milium</a></li> <li><a href="/wiki/Miliaria_crystalline" class="mw-redirect" title="Miliaria crystalline">Miliaria crystalline</a></li> <li><a href="/wiki/Miliaria_profunda" class="mw-redirect" title="Miliaria profunda">Miliaria profunda</a></li> <li><a href="/wiki/Miliaria_pustulosa" class="mw-redirect" title="Miliaria pustulosa">Miliaria pustulosa</a></li> <li><a href="/wiki/Miliaria_rubra" class="mw-redirect" title="Miliaria rubra">Miliaria rubra</a></li> <li><a href="/wiki/Occlusion_miliaria" class="mw-redirect" title="Occlusion miliaria">Occlusion miliaria</a></li> <li><a href="/wiki/Postmiliarial_hypohidrosis" class="mw-redirect" title="Postmiliarial hypohidrosis">Postmiliarial hypohidrosis</a></li></ul></li> <li><a href="/wiki/Granulosis_rubra_nasi" title="Granulosis rubra nasi">Granulosis rubra nasi</a></li> <li><a href="/wiki/Ross%27_syndrome" title="Ross' syndrome">Ross' syndrome</a></li> <li><a href="/wiki/Hyperhidrosis" title="Hyperhidrosis">Hyperhidrosis</a> <ul><li><a href="/wiki/Generalized_hyperhidrosis" class="mw-redirect" title="Generalized hyperhidrosis">Generalized</a></li> <li><a href="/wiki/Gustatory_hyperhidrosis" class="mw-redirect" title="Gustatory hyperhidrosis">Gustatory</a></li> <li><a href="/wiki/Palmoplantar_hyperhidrosis" title="Palmoplantar hyperhidrosis">Palmoplantar</a></li></ul></li> <li><a href="/wiki/Hypohidrosis" title="Hypohidrosis">Hypohidrosis</a> <ul><li><a href="/wiki/Anhidrosis" class="mw-redirect" title="Anhidrosis">Anhidrosis</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Apocrine" title="Apocrine">Apocrine</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Body_odor" title="Body odor">Body odor</a></li> <li><a href="/wiki/Chromhidrosis" title="Chromhidrosis">Chromhidrosis</a></li> <li><a href="/wiki/Fox%E2%80%93Fordyce_disease" title="Fox–Fordyce disease">Fox–Fordyce disease</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Sebaceous_gland" title="Sebaceous gland">Sebaceous</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Sebaceous_hyperplasia" title="Sebaceous hyperplasia">Sebaceous hyperplasia</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Human_hair235" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Human_hair" title="Template:Human hair"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Human_hair" title="Template talk:Human hair"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Human_hair" title="Special:EditPage/Template:Human hair"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Human_hair235" style="font-size:114%;margin:0 4em"><a href="/wiki/Hair" title="Hair">Human hair</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Classification</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;font-weight:normal;">by type</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lanugo" title="Lanugo">Lanugo</a></li> <li><a href="/wiki/Body_hair" title="Body hair">Body</a></li> <li><a href="/wiki/Terminal_hair" title="Terminal hair">Terminal</a></li> <li><a href="/wiki/Vellus_hair" title="Vellus hair">Vellus</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;font-weight:normal;">by location</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Body_hair" title="Body hair">Body</a></li> <li><a href="/wiki/Ear_hair" title="Ear hair">Ear</a></li> <li><a href="/wiki/Nasal_hair" title="Nasal hair">Nose</a></li> <li><a href="/wiki/Eyebrow" title="Eyebrow">Eyebrow</a> <ul><li><a href="/wiki/Unibrow" title="Unibrow">unibrow</a></li></ul></li> <li><a href="/wiki/Eyelash" title="Eyelash">Eyelash</a></li> <li><a href="/wiki/Underarm_hair" title="Underarm hair">Underarm</a></li> <li><a href="/wiki/Chest_hair" title="Chest hair">Chest</a></li> <li><a href="/wiki/Abdominal_hair" title="Abdominal hair">Abdominal</a></li> <li><a href="/wiki/Pubic_hair" title="Pubic hair">Pubic</a></li> <li><a href="/wiki/Leg_hair" title="Leg hair">Leg</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Head <a href="/wiki/Hairstyle" title="Hairstyle">hairstyles</a><br />(<a href="/wiki/List_of_hairstyles" title="List of hairstyles">list of hairstyles</a>)</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Afro" title="Afro">Afro</a></li> <li><a href="/wiki/Afro_puffs" title="Afro puffs">Afro puffs</a></li> <li><a href="/wiki/Asymmetric_cut" title="Asymmetric cut">Asymmetric cut</a></li> <li><a class="mw-selflink selflink">Bald</a></li> <li><a href="/wiki/Bangs_(hair)" title="Bangs (hair)">Bangs</a></li> <li><a href="/wiki/Beehive_(hairstyle)" title="Beehive (hairstyle)">Beehive</a></li> <li><a href="/wiki/Big_hair" title="Big hair">Big hair</a></li> <li><a href="/wiki/Long_hair" title="Long hair">Blowout</a></li> <li><a href="/wiki/Bob_cut" title="Bob cut">Bob cut</a></li> <li><a href="/wiki/Bouffant" title="Bouffant">Bouffant</a></li> <li><a href="/wiki/Bowl_cut" title="Bowl cut">Bowl cut</a></li> <li><a href="/wiki/Braid_(hairstyle)" title="Braid (hairstyle)">Braid</a></li> <li><a href="/wiki/Broccoli_haircut" title="Broccoli haircut">Broccoli haircut</a></li> <li><a href="/wiki/Brush_cut" title="Brush cut">Brush, butch, burr cut</a></li> <li><a href="/wiki/Bun_(hairstyle)" title="Bun (hairstyle)">Bun</a> (<a href="/wiki/Bun_(hairstyle)" title="Bun (hairstyle)">odango</a>)</li> <li><a href="/wiki/Bunches" class="mw-redirect" title="Bunches">Bunches</a></li> <li><a href="/wiki/Regular_haircut" title="Regular haircut">Businessman cut</a></li> <li><a href="/wiki/Butterfly_haircut" title="Butterfly haircut">Butterfly haircut</a></li> <li><a href="/wiki/Buzz_cut" title="Buzz cut">Buzz cut</a></li> <li><a href="/wiki/Caesar_cut" title="Caesar cut">Caesar cut</a></li> <li><a href="/wiki/Chignon_(hairstyle)" title="Chignon (hairstyle)">Chignon</a></li> <li><a href="/wiki/Chonmage" title="Chonmage">Chonmage</a></li> <li><a href="/wiki/Comb_over" title="Comb over">Comb over</a></li> <li><a href="/wiki/Conk" title="Conk">Conk</a></li> <li><a href="/wiki/Cornrows" title="Cornrows">Cornrows</a></li> <li><a href="/wiki/Crew_cut" title="Crew cut">Crew cut</a></li> <li><a href="/wiki/Crochet_braids" title="Crochet braids">Crochet braids</a></li> <li><a href="/wiki/Croydon_facelift" title="Croydon facelift">Croydon facelift</a></li> <li><a href="/wiki/Curly_hair" class="mw-redirect" title="Curly hair">Curly hair</a></li> <li><a href="/wiki/Curtained_hair" title="Curtained hair">Curtained hair</a></li> <li><a href="/wiki/Czupryna" title="Czupryna">Czupryna</a></li> <li><a href="/wiki/Devilock" title="Devilock">Devilock</a></li> <li><a href="/wiki/Dido_flip" title="Dido flip">Dido flip</a></li> <li><a href="/wiki/Digital_perm" title="Digital perm">Digital perm</a></li> <li><a href="/wiki/Dreadlocks" title="Dreadlocks">Dreadlocks</a></li> <li><a href="/wiki/Ducktail" title="Ducktail">Ducktail</a></li> <li><a href="/wiki/Edgar_cut" title="Edgar cut">Edgar cut</a></li> <li><a href="/wiki/Eton_crop" title="Eton crop">Eton crop</a></li> <li><a href="/wiki/Artificial_hair_integrations" title="Artificial hair integrations">Extensions</a></li> <li><a href="/wiki/Mohawk_hairstyle" title="Mohawk hairstyle">Fauxhawk</a></li> <li><a href="/wiki/Feathered_hair" title="Feathered hair">Feathered hair</a></li> <li><a href="/wiki/Finger_wave" title="Finger wave">Finger wave</a></li> <li><a href="/wiki/Flattop" title="Flattop">Flattop</a></li> <li><a href="/wiki/Fontange" title="Fontange">Fontange</a></li> <li><a href="/wiki/French_braid" title="French braid">French braid</a></li> <li><a href="/wiki/French_twist_(hairstyle)" title="French twist (hairstyle)">French twist</a></li> <li><a href="/wiki/Fringe_(hair)" class="mw-redirect" title="Fringe (hair)">Fringe</a></li> <li><a href="/wiki/Frosted_tips" title="Frosted tips">Frosted tips</a></li> <li><a href="/wiki/Hair_crimping" title="Hair crimping">Hair crimping</a></li> <li><a href="/wiki/Hair_twists" title="Hair twists">Hair twists</a></li> <li><a href="/wiki/High_and_tight" title="High and tight">High and tight</a></li> <li><a href="/wiki/Hime_cut" title="Hime cut">Hime cut</a></li> <li><a href="/wiki/Historical_Christian_hairstyles" title="Historical Christian hairstyles">Historical Christian hairstyles</a></li> <li><a href="/wiki/Hi-top_fade" title="Hi-top fade">Hi-top fade</a></li> <li><a href="/wiki/Induction_cut" title="Induction cut">Induction cut</a></li> <li><a href="/wiki/Ivy_League_(haircut)" title="Ivy League (haircut)">Ivy League, Harvard, Princeton cut</a></li> <li><a href="/wiki/Hairstyles_of_Japanese_women" title="Hairstyles of Japanese women">Japanese women</a></li> <li><a href="/wiki/Jewfro" class="mw-redirect" title="Jewfro">Jewfro</a></li> <li><a href="/wiki/Jheri_curl" title="Jheri curl">Jheri curl</a></li> <li><a href="/wiki/Kinky_hair" title="Kinky hair">Kinky hair</a></li> <li><a href="/wiki/Kiss_curl" title="Kiss curl">Kiss curl</a></li> <li><a href="/wiki/Laid_edges" title="Laid edges">Laid edges</a></li> <li><a href="/wiki/Layered_hair" title="Layered hair">Layered hair</a></li> <li><a href="/wiki/Liberty_spikes" title="Liberty spikes">Liberty spikes</a></li> <li><a href="/wiki/Long_hair" title="Long hair">Long hair</a></li> <li><a href="/wiki/Lob_(haircut)" title="Lob (haircut)">Lob cut</a></li> <li><a href="/wiki/Lovelock_(hair)" title="Lovelock (hair)">Lovelock</a></li> <li><a href="/wiki/Marcelling" title="Marcelling">Marcelling</a></li> <li><a href="/wiki/Wings_(haircut)" title="Wings (haircut)">Mod cut</a></li> <li><a href="/wiki/Mohawk_hairstyle" title="Mohawk hairstyle">Mohawk</a></li> <li><a href="/wiki/Mullet_(haircut)" title="Mullet (haircut)">Mullet</a></li> <li><a href="/wiki/Hairstyles_in_the_1950s" title="Hairstyles in the 1950s">1950s</a></li> <li><a href="/wiki/Hairstyles_in_the_1980s" title="Hairstyles in the 1980s">1980s</a></li> <li><a href="/wiki/Pageboy" title="Pageboy">Pageboy</a></li> <li><a href="/wiki/Part_(haircut)" class="mw-redirect" title="Part (haircut)">Part</a></li> <li><a href="/wiki/Payot" title="Payot">Payot</a></li> <li><a href="/wiki/Pigtail" title="Pigtail">Pigtail</a></li> <li><a href="/wiki/Pixie_cut" title="Pixie cut">Pixie cut</a></li> <li><a href="/wiki/Pompadour_(hairstyle)" title="Pompadour (hairstyle)">Pompadour</a></li> <li><a href="/wiki/Ponytail" title="Ponytail">Ponytail</a></li> <li><a href="/wiki/Punch_perm" title="Punch perm">Punch perm</a></li> <li><a href="/wiki/Regular_haircut" title="Regular haircut">Professional cut</a></li> <li><a href="/wiki/Queue_(hairstyle)" title="Queue (hairstyle)">Queue</a></li> <li><a href="/wiki/Quiff" title="Quiff">Quiff</a></li> <li><a href="/wiki/Rattail_(hairstyle)" title="Rattail (hairstyle)">Rattail</a></li> <li><a href="/wiki/Razor_cut" class="mw-redirect" title="Razor cut">Razor cut</a></li> <li><a href="/wiki/Regular_haircut" title="Regular haircut">Regular haircut</a></li> <li><a href="/wiki/Ringlet_(haircut)" title="Ringlet (haircut)">Ringlets</a></li> <li><a href="/wiki/Shag_(haircut)" title="Shag (haircut)">Shag</a></li> <li><a href="/wiki/Shape-up" title="Shape-up">Shape-up</a></li> <li><a href="/wiki/Shikha_(hairstyle)" title="Shikha (hairstyle)">Shikha</a></li> <li><a href="/wiki/Shimada_(hairstyle)" class="mw-redirect" title="Shimada (hairstyle)">Shimada</a></li> <li><a href="/wiki/Regular_haircut" title="Regular haircut">Short back and sides</a></li> <li><a href="/wiki/Brush_cut" title="Brush cut">Short brush cut</a></li> <li><a href="/wiki/Short_hair" title="Short hair">Short hair</a></li> <li><a href="/wiki/Liberty_spikes" title="Liberty spikes">Spiky hair</a></li> <li><a href="/wiki/Straight_hair" class="mw-redirect" title="Straight hair">Straight hair</a></li> <li><a href="/wiki/Regular_haircut" title="Regular haircut">Standard haircut</a></li> <li><a href="/wiki/Step_cutting" title="Step cutting">Step cut</a></li> <li><a href="/wiki/Surfer_hair" title="Surfer hair">Surfer hair</a></li> <li><a href="/wiki/Regular_haircut" title="Regular haircut">Taper cut</a></li> <li><a href="/wiki/Temple_fade_(hairstyle)" title="Temple fade (hairstyle)">Temple fade</a></li> <li><a href="/wiki/Titus_cut" title="Titus cut">Titus cut</a></li> <li><a href="/wiki/Tonsure" title="Tonsure">Tonsure</a></li> <li><a href="/wiki/Updo" class="mw-redirect" title="Updo">Updo</a></li> <li><a href="/wiki/Undercut_(hairstyle)" title="Undercut (hairstyle)">Undercut</a></li> <li><a href="/wiki/Victory_rolls" title="Victory rolls">Victory rolls</a></li> <li><a href="/wiki/Waves_(hairstyle)" title="Waves (hairstyle)">Waves</a></li> <li><a href="/wiki/Widow%27s_peak" title="Widow's peak">Widow's peak</a></li> <li><a href="/wiki/Wings_(haircut)" title="Wings (haircut)">Wings</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Facial_hair" title="Facial hair">Facial hair</a><br />(<a href="/wiki/List_of_facial_hairstyles" title="List of facial hairstyles">list</a>)</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Beard" title="Beard">Beard</a> <ul><li><a href="/wiki/Chinstrap_beard" title="Chinstrap beard">Chinstrap</a></li> <li><a href="/wiki/Goatee" title="Goatee">Goatee</a></li> <li><a href="/wiki/Ned_Kelly_beard" title="Ned Kelly beard">Ned Kelly</a></li> <li><a href="/wiki/Shenandoah_(beard)" title="Shenandoah (beard)">Shenandoah</a></li> <li><a href="/wiki/Soul_patch" title="Soul patch">Soul patch</a></li> <li><a href="/wiki/Van_Dyke_beard" title="Van Dyke beard">Van Dyke</a></li></ul></li> <li><a href="/wiki/Moustache" title="Moustache">Moustache</a> <ul><li><a href="/wiki/Fu_Manchu_moustache" title="Fu Manchu moustache">Fu Manchu</a></li> <li><a href="/wiki/Handlebar_moustache" title="Handlebar moustache">handlebar</a></li> <li><a href="/wiki/Horseshoe_moustache" title="Horseshoe moustache">horseshoe</a></li> <li><a href="/wiki/Pencil_moustache" title="Pencil moustache">pencil</a></li> <li><a href="/wiki/Toothbrush_moustache" title="Toothbrush moustache">toothbrush</a></li> <li><a href="/wiki/Walrus_moustache" title="Walrus moustache">walrus</a></li></ul></li> <li><a href="/wiki/Designer_stubble" title="Designer stubble">Designer stubble</a></li> <li><a href="/wiki/Sideburns" title="Sideburns">Sideburns</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Hair subtraction</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;font-weight:normal;">cosmetic</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Hair_removal" title="Hair removal">Removal</a> <ul><li><a href="/wiki/Waxing" title="Waxing">waxing</a></li> <li><a href="/wiki/Threading_(epilation)" title="Threading (epilation)">threading</a></li> <li><a href="/wiki/Plucking_(hair_removal)" title="Plucking (hair removal)">plucking</a></li> <li><a href="/wiki/Chemical_depilatory" title="Chemical depilatory">chemical</a></li> <li><a href="/wiki/Electrology" title="Electrology">electric</a></li> <li><a href="/wiki/Laser_hair_removal" title="Laser hair removal">laser</a></li> <li><a href="/wiki/Intense_pulsed_light" title="Intense pulsed light">IPL</a></li></ul></li> <li><a href="/wiki/Shaving" title="Shaving">Shaving</a> <ul><li><a href="/wiki/Head_shaving" title="Head shaving">head</a></li> <li><a href="/wiki/Leg_shaving" title="Leg shaving">leg</a></li> <li><a href="/wiki/Shaving_cream" title="Shaving cream">cream</a></li> <li><a href="/wiki/Shaving_brush" title="Shaving brush">brush</a></li> <li><a href="/wiki/Shaving_soap" title="Shaving soap">soap</a></li></ul></li> <li><a href="/wiki/Razor" title="Razor">Razor</a> <ul><li><a href="/wiki/Electric_shaver" title="Electric shaver">electric</a></li> <li><a href="/wiki/Safety_razor" title="Safety razor">safety</a></li> <li><a href="/wiki/Straight_razor" title="Straight razor">straight</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;font-weight:normal;">disorders</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a class="mw-selflink selflink">Alopecia</a> <ul><li><a href="/wiki/Alopecia_areata" title="Alopecia areata">areata</a></li> <li><a href="/wiki/Alopecia_totalis" title="Alopecia totalis">totalis</a></li> <li><a href="/wiki/Alopecia_universalis" title="Alopecia universalis">universalis</a></li> <li><a href="/wiki/Frictional_alopecia" title="Frictional alopecia">Frictional alopecia</a></li></ul></li> <li><a href="/wiki/Pattern_hair_loss" title="Pattern hair loss">Pattern hair loss</a></li> <li><a href="/wiki/Hypertrichosis" title="Hypertrichosis">Hypertrichosis</a></li> <li><a href="/wiki/Management_of_hair_loss" title="Management of hair loss">Management</a></li> <li><a href="/wiki/Trichophilia" class="mw-redirect" title="Trichophilia">Trichophilia</a></li> <li><a href="/wiki/Trichotillomania" title="Trichotillomania">Trichotillomania</a></li> <li><a href="/wiki/Pogonophobia" title="Pogonophobia">Pogonophobia</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Haircare products</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Hairbrush" title="Hairbrush">Brush</a></li> <li><a href="/wiki/Hair_clay" title="Hair clay">Clay</a></li> <li><a href="/wiki/Hair_clipper" title="Hair clipper">Clipper</a></li> <li><a href="/wiki/Comb" title="Comb">Comb</a></li> <li><a href="/wiki/Hair_conditioner" title="Hair conditioner">Conditioner</a></li> <li><a href="/wiki/Hair_dryer" title="Hair dryer">Dryer</a></li> <li><a href="/wiki/Hair_gel" title="Hair gel">Gel</a></li> <li><a href="/wiki/Hairstyling_product" title="Hairstyling product">Hairstyling products</a></li> <li><a href="/wiki/Hot_comb" title="Hot comb">Hot comb</a></li> <li><a href="/wiki/Hair_iron" title="Hair iron">Iron</a></li> <li><a href="/wiki/Hair_mousse" title="Hair mousse">Mousse</a></li> <li><a href="/wiki/Pomade" title="Pomade">Pomade</a></li> <li><a href="/wiki/Relaxer" title="Relaxer">Relaxer</a></li> <li><a href="/wiki/Hair_roller" title="Hair roller">Rollers</a></li> <li><a href="/wiki/Shampoo" title="Shampoo">Shampoo</a></li> <li><a href="/wiki/Hair_spray" title="Hair spray">Spray</a></li> <li><a href="/wiki/Hair_volumizer" title="Hair volumizer">Volumizer</a></li> <li><a href="/wiki/Hair_wax" title="Hair wax">Wax</a></li> <li><a href="/wiki/Hair_texture_powder" title="Hair texture powder">Hair texture powder</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Haircare techniques</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Backcombing" title="Backcombing">Backcombing</a></li> <li><a href="/wiki/Hair_coloring" title="Hair coloring">Hair coloring</a></li> <li><a href="/wiki/Hair_crimping" title="Hair crimping">Crimping</a></li> <li><a href="/wiki/Curly_Girl_Method" title="Curly Girl Method">Curly Girl Method</a></li> <li><a href="/wiki/Hair_cutting" class="mw-redirect" title="Hair cutting">Hair cutting</a></li> <li><a href="/wiki/Perm_(hairstyle)" title="Perm (hairstyle)">Perm</a></li> <li><a href="/wiki/Shampoo_and_set" title="Shampoo and set">Shampoo and set</a></li> <li><a href="/wiki/Hair_straightening" title="Hair straightening">Straightening</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Health and medical</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Greying_of_hair" title="Greying of hair">Greying of hair</a></li> <li><a href="/wiki/Hair_follicle" title="Hair follicle">Hair follicle</a></li> <li><a href="/wiki/Human_hair_growth" title="Human hair growth">Hair growth</a></li> <li><a href="/wiki/Trichology" title="Trichology">Trichology</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Andre_Walker_Hair_Typing_System" title="Andre Walker Hair Typing System">Andre Walker Hair Typing System</a></li> <li><a href="/wiki/Beard_and_haircut_laws_by_country" title="Beard and haircut laws by country">Beard and haircut laws by country</a></li> <li><a href="/wiki/Bearded_lady" title="Bearded lady">Bearded lady</a></li> <li><a href="/wiki/Barber" title="Barber">Barber</a> (<a href="/wiki/Barber%27s_pole" title="Barber's pole">pole</a>)</li> <li><a href="/wiki/Eponymous_hairstyle" title="Eponymous hairstyle">Eponymous hairstyle</a></li> <li><a href="/wiki/Frizz" title="Frizz">Frizz</a></li> <li><a href="/wiki/Good_hair" class="mw-redirect" title="Good hair">Good hair</a></li> <li><a href="/wiki/Hairdresser" title="Hairdresser">Hairdresser</a> <ul><li><a href="/wiki/List_of_hairdressers" title="List of hairdressers">list</a></li></ul></li> <li><a href="/wiki/Hair_fetishism" title="Hair fetishism">Hair fetishism</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox authority-control" aria-label="Navbox603" style="padding:3px"><table class="nowraplinks hlist navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Help:Authority_control" title="Help:Authority control">Authority control databases</a>: National <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q181391#identifiers" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" 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