CINXE.COM
Attention-deficit/hyperactivity disorder: MedlinePlus Genetics
<!DOCTYPE html> <html lang="en" id="genetic_condition" class="nojs us" data-root="https://medlineplus.gov/"> <head> <meta charset="utf-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" /> <meta http-equiv="window-target" content="_top" /> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1" /> <link rel="canonical" href="https://medlineplus.gov/genetics/condition/attention-deficit-hyperactivity-disorder/" /> <link href="https://medlineplus.gov/genetics/condition/attention-deficit-hyperactivity-disorder/" hreflang="x-default" rel="alternate"> <meta name="ac-dictionary" content="medlineplus-ac-dictionary" /> <meta name="description" content="Attention-deficit/hyperactivity disorder (ADHD) is a behavioral disorder that typically begins in childhood and is characterized by a short attention span (inattention), an inability to be calm and stay still (hyperactivity), and poor impulse control (impulsivity). Explore symptoms, inheritance, genetics of this condition." /> <link rel="shortcut icon" href="https://medlineplus.gov/images/favicon.ico" type="image/x-icon" /> <link rel="apple-touch-icon" href="https://medlineplus.gov/images/touch-icon.png" /> <meta property="fb:app_id" content="1042245625821448" /> <meta property="og:title" content="Attention-deficit/hyperactivity disorder: MedlinePlus Genetics" /> <meta property="og:url" content="https://medlineplus.gov/genetics/condition/attention-deficit-hyperactivity-disorder/" /> <meta property="og:image" content="https://medlineplus.gov/images/GeneticCondition_Share.jpg" /> <meta property="og:description" content="Attention-deficit/hyperactivity disorder (ADHD) is a behavioral disorder that typically begins in childhood and is characterized by a short attention span (inattention), an inability to be calm and stay still (hyperactivity), and poor impulse control (impulsivity). Explore symptoms, inheritance, genetics of this condition." /> <meta name="twitter:card" content="summary_large_image" /> <meta name="twitter:site" content="@medlineplus" /> <meta name="twitter:creator" content="@medlineplus" /> <meta name="twitter:title" content="Attention-deficit/hyperactivity disorder: MedlinePlus Genetics" /> <meta name="twitter:description" content="Attention-deficit/hyperactivity disorder (ADHD) is a behavioral disorder that typically begins in childhood and is characterized by a short attention span (inattention), an inability to be calm and stay still (hyperactivity), and poor impulse control (impulsivity). Explore symptoms, inheritance, genetics of this condition." /> <meta name="twitter:image" content="https://medlineplus.gov/images/GeneticCondition_Share.jpg" /> <meta name="twitter:image:alt" content=""/> <meta property="og:image:alt" content="" /> <title>Attention-deficit/hyperactivity disorder: MedlinePlus Genetics</title> <link rel="stylesheet" href="https://medlineplus.gov/css/common_new.css?1732684173109" /> <!--[if IE 8]> <link rel="stylesheet" href="https://medlineplus.gov/css/ie8/common.css"> <![endif]--> <link rel="stylesheet" href="https://medlineplus.gov/uswds/css/uswds_styles.css" /> <script type="text/javascript">document.getElementsByTagName('html')[0].className = document.getElementsByTagName('html')[0].className.replace( /(?:^|\s)nojs(?!\S)/g , '').trim();</script> <script src="https://medlineplus.gov/uswds/js/uswds-init.min.js" type="text/javascript"></script> <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); })(window,document,'script','dataLayer','GTM-MMVM77');</script> </head> <body> <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-MMVM77" height="0" width="0" style="display:none;visibility:hidden" title="googletagmanager"></iframe></noscript> <a name="top" id="top"></a> <a class="hide-offscreen" href="#start">Skip navigation</a> <section class="usa-banner" aria-label="Official website of the United States government" > <div class="usa-accordion"> <header class="usa-banner__header"> <div class="usa-banner__inner"> <div class="grid-col-auto"> <img aria-hidden="true" class="usa-banner__header-flag" src="https://medlineplus.gov/uswds/img/us_flag_small.png" alt="" /> </div> <div class="grid-col-fill tablet:grid-col-auto" aria-hidden="true"> <p class="usa-banner__header-text"> An official website of the United States government </p> <p class="usa-banner__header-action">Here鈥檚 how you know</p> </div> <button type="button" class="usa-accordion__button usa-banner__button" aria-expanded="false" aria-controls="gov-banner-default-default" > <span class="usa-banner__button-text">Here鈥檚 how you know</span> </button> </div> </header> <div class="usa-banner__content usa-accordion__content" id="gov-banner-default-default" > <div class="grid-row grid-gap-lg"> <div class="usa-banner__guidance tablet:grid-col-6"> <img class="usa-banner__icon usa-media-block__img" src="https://medlineplus.gov/uswds/img/icon-dot-gov.svg" role="img" alt="" aria-hidden="true" /> <div class="usa-media-block__body"> <p> <strong>Official websites use .gov</strong><br />A <strong>.gov</strong> website belongs to an official government organization in the United States. </p> </div> </div> <div class="usa-banner__guidance tablet:grid-col-6"> <img class="usa-banner__icon usa-media-block__img" src="https://medlineplus.gov/uswds/img/icon-https.svg" role="img" alt="" aria-hidden="true" /> <div class="usa-media-block__body"> <p> <strong>Secure .gov websites use HTTPS</strong><br />A <strong>lock</strong> ( <span class="icon-lock" ><svg xmlns="http://www.w3.org/2000/svg" width="52" height="64" viewBox="0 0 52 64" class="usa-banner__lock-image" role="img" aria-labelledby="banner-lock-description-default" focusable="false" > <title id="banner-lock-title-default">Lock</title> <desc id="banner-lock-description-default">Locked padlock icon</desc> <path fill="#000000" fill-rule="evenodd" d="M26 0c10.493 0 19 8.507 19 19v9h3a4 4 0 0 1 4 4v28a4 4 0 0 1-4 4H4a4 4 0 0 1-4-4V32a4 4 0 0 1 4-4h3v-9C7 8.507 15.507 0 26 0zm0 8c-5.979 0-10.843 4.77-10.996 10.712L15 19v9h22v-9c0-6.075-4.925-11-11-11z" /> </svg> </span >) or <strong>https://</strong> means you鈥檝e safely connected to the .gov website. Share sensitive information only on official, secure websites. </p> </div> </div> </div> </div> </div> </section> <div id="mplus-wrap"> <header> <div id="mplus-header"> <div id="mplus-orgs"> <a href="https://www.nih.gov/" class="nih-org" target="_blank" title="National Institutes of Health"> <img class="nihlogo" src="https://medlineplus.gov/images/nihlogo.png" alt="National Institutes of Health"/> </a><a href="https://www.nlm.nih.gov/" target="_blank"> National Library of Medicine</a> </div> <div id="mplus-logo" class="years-25"> <a href="https://medlineplus.gov/"> <img alt="MedlinePlus Trusted Health Information for You" title="MedlinePlus Trusted Health Information for You" src="https://medlineplus.gov/images/m_logo_25.png"/> </a> </div> <div id="mplus-nav"> <div aria-live="polite" class="sm-live-area hide-offscreen"></div> <button id="sm-menu-btn" class="navmenu-btn" title="Menu" role="button" aria-controls="mplus-menu-list" type="submit">Menu<span class="icon icon-nav-menu"></span></button> <ul id="mplus-menu-list" class="nav-list"> <li><a href="https://medlineplus.gov/healthtopics.html">Health Topics</a></li> <li><a href="https://medlineplus.gov/druginformation.html">Drugs & Supplements</a></li> <li><a href="https://medlineplus.gov/genetics/">Genetics</a></li> <li><a href="https://medlineplus.gov/lab-tests/">Medical Tests</a></li> <li><a href="https://medlineplus.gov/encyclopedia.html">Medical Encyclopedia</a></li> <li><a href="https://medlineplus.gov/about/">About MedlinePlus</a></li> </ul><button id="sm-search-btn" class="navmenu-btn" title="Search" role="button" aria-controls="mplus-search" type="submit"><span class="hide-offscreen"></span>Search<span class="icon icon-nav-search"></span></button> <div class="top-1"> <form id="mplus-search" method="get" action="https://vsearch.nlm.nih.gov/vivisimo/cgi-bin/query-meta" title="Search MedlinePlus" target="_self"> <input type="hidden" name="v:project" value="medlineplus"/> <input type="hidden" name="v:sources" value="medlineplus-bundle"/> <div class="form-box text-combo"> <div class="form-area"><label class="hide-offscreen" for="searchtext_primary">Search MedlinePlus</label> <input id="searchtext_primary" class="form-text" type="text" placeholder="Search MedlinePlus" alt="#Site Search input" title="Site Search input" maxlength="400" size="40" name="query" autocomplete="off" role="textbox" aria-autocomplete="list" aria-haspopup="true"/> </div> <div class="button-area"> <button class="form-btn" title="Search MedlinePlus" alt="Search MedlinePlus" type="submit">GO</button> </div> </div> </form> <div class="secondarynav"> <ul class="nav-list"> <li><a href="https://medlineplus.gov/about/"><span>About MedlinePlus</span></a></li> <li><a href="https://medlineplus.gov/whatsnew/">What's New</a></li> <li><a href="https://medlineplus.gov/sitemap.html"><span>Site Map</span></a></li> <li><a href="https://support.nlm.nih.gov/knowledgebase/category/?id=CAT-01231&category=medlineplus&from=https%3A//medlineplus.gov/genetics/condition/attention-deficit-hyperactivity-disorder/" target="_blank"><span>Customer Support</span></a></li> </ul> </div> </div> <div id="mplus-nav-bar"> <ul class="nav-list"> <li><a href="https://medlineplus.gov/healthtopics.html">Health Topics</a></li><li><a href="https://medlineplus.gov/druginformation.html">Drugs & Supplements</a></li><li><a href="https://medlineplus.gov/genetics/">Genetics</a></li><li><a href="https://medlineplus.gov/lab-tests/">Medical Tests</a></li><li><a href="https://medlineplus.gov/encyclopedia.html">Medical Encyclopedia</a></li> </ul> </div> </div> </div> </header> <div id="mplus-content"> <div id="breadcrumbs"> <div itemprop="breadcrumb" itemscope="" itemtype="http://schema.org/BreadcrumbList"> <span class="hide-offscreen">You Are Here:</span> <div itemscope itemprop="itemListElement" itemtype="http://schema.org/ListItem"> <a href="https://medlineplus.gov/" itemprop="item"><span itemprop="name">Home</span></a> → <meta itemprop="position" content="1"/> </div> <div itemscope itemprop="itemListElement" itemtype="http://schema.org/ListItem"> <a href="https://medlineplus.gov/genetics/" itemprop="item"><span itemprop="name">Genetics</span></a> → <meta itemprop="position" content="2"/> </div> <div itemscope itemprop="itemListElement" itemtype="http://schema.org/ListItem"> <a href="https://medlineplus.gov/genetics/condition/" itemprop="item"><span itemprop="name">Genetic Conditions</span></a> → <meta itemprop="position" content="3"/> </div> <div> <span>Attention-deficit/hyperactivity disorder</span> </div> </div> </div> <span class="page-url print-only">URL of this page: https://medlineplus.gov/genetics/condition/attention-deficit-hyperactivity-disorder/</span> <div > <article> <div class="page-info"> <div class="page-title"> <a name="start" id="start"></a> <h1>Attention-deficit/hyperactivity disorder</h1> </div> <div class="page-actions"></div> <noscript><span class="js-disabled-message">To use the sharing features on this page, please enable JavaScript.</span></noscript> </div> <div class="main"> <div class="mp-exp exp-full" data-bookmark="description"> <h2>Description</h2> <section><div class="mp-content"><p>Attention-deficit/hyperactivity disorder (ADHD) is a behavioral disorder that typically begins in childhood and is characterized by a short attention span (inattention), an inability to be calm and stay still (hyperactivity), and poor impulse control (impulsivity). Some people with ADHD have problems with only inattention or with hyperactivity and impulsivity, but most have problems related to all three features.</p><p>In people with ADHD, the characteristic behaviors are frequent and severe enough to interfere with the activities of daily living such as school, work, and relationships with others. Because of an inability to stay focused on tasks, people with inattention may be easily distracted, forgetful, avoid tasks that require sustained attention, have difficulty organizing tasks, or frequently lose items.</p><p>Hyperactivity is usually shown by frequent movement. Individuals with this feature often fidget or tap their foot when seated, leave their seat when it is inappropriate to do so (such as in the classroom), or talk a lot and interrupt others.</p><p>Impulsivity can result in hasty actions without thought for the consequences. Individuals with poor impulse control may have difficulty waiting for their turn, deferring to others, or considering their actions before acting.</p><p>More than two-thirds of all individuals with ADHD have additional conditions, including insomnia, mood or anxiety disorders, learning disorders, or substance use disorders. Affected individuals may also have <a data-pid="16743" href="https://medlineplus.gov/genetics/condition/autism-spectrum-disorder/">autism spectrum disorder</a>, which is characterized by impaired communication and social interaction, or <a data-pid="14749" href="https://medlineplus.gov/genetics/condition/tourette-syndrome/">Tourette syndrome</a>, which is a disorder characterized by repetitive and involuntary movements or noises called tics.</p><p>In most affected individuals, ADHD continues throughout life, but in about one-third of individuals, signs and symptoms of ADHD go away by adulthood.</p></div> </section> </div> <div class="mp-exp exp-full" data-bookmark="frequency"> <h2>Frequency</h2> <section><div class="mp-content"><p>Worldwide, ADHD affects approximately 5 percent of children and 3 percent of adults.</p></div> </section> </div> <div class="mp-exp exp-full" data-bookmark="causes"> <h2>Causes</h2> <section><div class="mp-content"><p>Changes in dozens of genes have been associated with ADHD. Many gene variations, most of which have not been identified, are thought to affect the risk of developing ADHD. Because they are common in many populations worldwide, not all people with these gene variations will have the condition. Many of the gene variations have only a small effect, and most people with ADHD are thought to have numerous associated gene variations. These variations also combine with environmental risk factors to determine an individual's risk of developing this complex condition. Environmental risk factors that may contribute to the development of ADHD include complications during pregnancy and delivery and exposure to heavy metals such as lead. It is unclear how genetic and environmental factors influence each other to contribute to ADHD.</p><p>Less commonly, ADHD is caused by rare gene mutations or chromosome abnormalities. In these instances, ADHD is usually one of several features of a syndrome that affects multiple parts of the body. In most individuals with ADHD caused by rare gene mutations, a mutation in a single gene is enough to cause the disorder.</p><p>The genes associated with ADHD are thought to be involved in the development of the brain. The various proteins produced from these genes affect multiple aspects of brain development, including production, growth, or organization of nerve cells (<a class="image-modal" data-alt="Illustration of a nerve cell with a nucleus surrounded by multiple branching dendrites. A long axon, which extends from one dendrite, is covered by the myelin sheath. At the end of the axon are axon terminals." data-caption="" data-credit="Pawel Graczyk/Shutterstock.com" data-filepath="images/PX0000TS_PRESENTATION.jpeg" data-imgtype="genetics" data-pix="PX0000TS" data-sourceurl="" data-title="Parts of a neuron" href="https://medlineplus.gov/images/PX0000TS_PRESENTATION.jpeg" id="PX0000TS_1" title="Show image">neurons<img alt="" aria-hidden="true" class="image-modal-icon" src="https://medlineplus.gov/css/img/icon_camera_small.png"/></a>). Other genes associated with ADHD provide instructions for proteins that are important for communication between neurons. Some of these proteins help produce or control the chemicals that relay communication signals between neurons (<a class="image-modal" data-alt="Diagram showing parts of a neuron and structure of a typical chemical synapse. Neurotransmitters are shown packaged into synaptic vesicles and transmitting signals from a neuron to a target cell across the synapse." data-caption="" data-credit="Designua/Shutterstock.com" data-filepath="images/PX00011G_PRESENTATION.jpeg" data-imgtype="genetics" data-pix="PX00011G" data-sourceurl="" data-title="Release and uptake of neurotransmitters at a nerve cell synapse" href="https://medlineplus.gov/images/PX00011G_PRESENTATION.jpeg" id="PX00011G_2" title="Show image">neurotransmitters<img alt="" aria-hidden="true" class="image-modal-icon" src="https://medlineplus.gov/css/img/icon_camera_small.png"/></a>). Other proteins have roles at the connections between neurons (<a class="image-modal" data-alt="Illustration of axon and dendrites with neuronal synapse highlighted" data-caption="" data-credit="National Institute of Mental Health/National Institutes of Health" data-filepath="images/PX0000K8_PRESENTATION.jpeg" data-imgtype="genetics" data-pix="PX0000K8" data-sourceurl="https://images.nimh.nih.gov/public_il/image_details.cfm?id=669" data-title="Neuronal synapse" href="https://medlineplus.gov/images/PX0000K8_PRESENTATION.jpeg" id="PX0000K8_3" title="Show image">synapses<img alt="" aria-hidden="true" class="image-modal-icon" src="https://medlineplus.gov/css/img/icon_camera_small.png"/></a>) where this communication takes place.</p><p>The specific ways that changes in associated genes are involved in the development of ADHD are unknown. Research has found that people with ADHD often have low levels of the neurotransmitter dopamine, which has many important functions, including having complex roles in thought (cognition), motivation, behavior, and control of movement. Certain layers of the brain may also develop somewhat differently than usual in people with ADHD.</p></div> </section> </div> <div class="mp-exp exp-full" data-bookmark="inheritance"> <h2>Inheritance</h2> <section><div class="mp- mp-content"><p>ADHD has a tendency to run in families, but the inheritance pattern is usually unknown. Overall, the risk of developing this condition is about nine times greater for <a class="image-modal" data-alt="First degree relatives include parents, offspring, and siblings." data-caption="A first degree relative is a family member who shares about 50 percent of their genes with a particular individual in a family. First degree relatives include parents, offspring, and siblings." data-credit="Darryl Leja, NHGRI" data-filepath="images/PX0000I8_PRESENTATION.jpeg" data-imgtype="genetics" data-pix="PX0000I8" data-sourceurl="" data-title="First-degree relatives" href="https://medlineplus.gov/images/PX0000I8_PRESENTATION.jpeg" id="PX0000I8_1" title="Show image">first-degree relatives<img alt="" aria-hidden="true" class="image-modal-icon" src="https://medlineplus.gov/css/img/icon_camera_small.png"/></a> of people with the condition (such as siblings or children) as compared to the general public. People with genetic changes associated with ADHD generally inherit an increased risk of developing the condition, rather than the condition itself. When ADHD is a feature of another genetic syndrome, it can be passed on according to the inheritance pattern of that syndrome.</p></div> </section> </div> <div class="mp-exp exp-full" data-bookmark="synonyms"> <h2>Other Names for This Condition</h2> <section> <ul class="bulletlist"> <li>ADD</li> <li>ADDH</li> <li>ADHD</li> <li>Attention deficit</li> <li>Attention deficit disorder</li> <li>Attention deficit disorder of childhood with hyperactivity</li> <li>Attention deficit disorder with hyperactivity</li> <li>Attention deficit disorder with hyperactivity syndrome</li> <li>Attention deficit hyperactivity disorder</li> <li>Hyperkinetic disorder</li> <li>Hyperkinetic syndrome</li> </ul> </section> </div> <div class="mp-exp exp-full" data-bookmark="resources"> <h2>Additional Information & Resources</h2> <section> <div class="mp-content"> <h2>Genetic Testing Information</h2> <ul> <li><a href="https://www.ncbi.nlm.nih.gov/gtr/conditions/C1263846/" target="TheNewWin">Genetic Testing Registry: Attention deficit hyperactivity disorder</a> <span class="desc-text"><img alt="From the National Institutes of Health" title="From the National Institutes of Health" src="https://medlineplus.gov/images/nih.png" class="imgdesc" width="25" height="16"></span></li> <li><a href="https://www.ncbi.nlm.nih.gov/gtr/conditions/C1837153/" target="TheNewWin">Genetic Testing Registry: Attention deficit-hyperactivity disorder, susceptibility to, 1</a> <span class="desc-text"><img alt="From the National Institutes of Health" title="From the National Institutes of Health" src="https://medlineplus.gov/images/nih.png" class="imgdesc" width="25" height="16"></span></li> <li><a href="https://www.ncbi.nlm.nih.gov/gtr/conditions/C2751802/" target="TheNewWin">Genetic Testing Registry: Attention deficit-hyperactivity disorder, susceptibility to, 7</a> <span class="desc-text"><img alt="From the National Institutes of Health" title="From the National Institutes of Health" src="https://medlineplus.gov/images/nih.png" class="imgdesc" width="25" height="16"></span></li> </ul> </div> </section> <section> <div class="mp-content"> <h2>Patient Support and Advocacy Resources</h2> <ul> <li><a href="https://rarediseases.org/" target="TheNewWin">National Organization for Rare Disorders (NORD)</a></li> </ul> </div> </section> <section> <div class="mp-content"> <h2>Clinical Trials</h2> <ul> <li><a href="https://clinicaltrials.gov/search?cond=%22Attention-deficit/hyperactivity disorder%22" target="TheNewWin">ClinicalTrials.gov</a> <span class="desc-text"><img alt="From the National Institutes of Health" title="From the National Institutes of Health" src="https://medlineplus.gov/images/nih.png" class="imgdesc" width="25" height="16"></span></li> </ul> </div> </section> <section> <div class="mp-content"> <h2>Catalog of Genes and Diseases from OMIM</h2> <ul> <li><a href="https://omim.org/entry/143465" target="TheNewWin">ATTENTION DEFICIT-HYPERACTIVITY DISORDER; ADHD</a></li> </ul> </div> </section> <section> <div class="mp-content"> <h2>Scientific Articles on PubMed</h2> <ul> <li><a href="https://pubmed.ncbi.nlm.nih.gov/?term=%28Attention+Deficit+Disorder+with+Hyperactivity%5BMAJR%5D%29+AND+%28%28attention-deficit/hyperactivity+disorder%5BTI%5D%29+OR+%28ADHD%5BTI%5D%29%29+AND+review%5Bpt%5D+AND+english%5Bla%5D+AND+human%5Bmh%5D+AND+%22last+1080+days%22%5Bdp%5D" target="TheNewWin">PubMed</a> <span class="desc-text"><img alt="From the National Institutes of Health" title="From the National Institutes of Health" src="https://medlineplus.gov/images/nih.png" class="imgdesc" width="25" height="16"></span></li> </ul> </div> </section> </div> <div class="mp-exp exp-full" data-bookmark="references"> <h2>References</h2> <section> <div class="mp-content"> <ul> <li>Belanger SA, Andrews D, Gray C, Korczak D. ADHD in children and youth: Part 1-Etiology, diagnosis, and comorbidity. Paediatr Child Health. 2018 Nov;23(7):447-453. doi: 10.1093/pch/pxy109. Epub 2018 Oct 24. <a href="https://pubmed.ncbi.nlm.nih.gov/30681669" target="TheNewWin">Citation on PubMed</a> or <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6199644/" target="TheNewWin">Free article on PubMed Central</a></li> <li>Demontis D, Walters RK, Martin J, Mattheisen M, Als TD, Agerbo E, Baldursson G, Belliveau R, Bybjerg-Grauholm J, Baekvad-Hansen M, Cerrato F, Chambert K, Churchhouse C, Dumont A, Eriksson N, Gandal M, Goldstein JI, Grasby KL, Grove J, Gudmundsson OO, Hansen CS, Hauberg ME, Hollegaard MV, Howrigan DP, Huang H, Maller JB, Martin AR, Martin NG, Moran J, Pallesen J, Palmer DS, Pedersen CB, Pedersen MG, Poterba T, Poulsen JB, Ripke S, Robinson EB, Satterstrom FK, Stefansson H, Stevens C, Turley P, Walters GB, Won H, Wright MJ; ADHD Working Group of the Psychiatric Genomics Consortium (PGC); Early Lifecourse & Genetic Epidemiology (EAGLE) Consortium; 23andMe Research Team; Andreassen OA, Asherson P, Burton CL, Boomsma DI, Cormand B, Dalsgaard S, Franke B, Gelernter J, Geschwind D, Hakonarson H, Haavik J, Kranzler HR, Kuntsi J, Langley K, Lesch KP, Middeldorp C, Reif A, Rohde LA, Roussos P, Schachar R, Sklar P, Sonuga-Barke EJS, Sullivan PF, Thapar A, Tung JY, Waldman ID, Medland SE, Stefansson K, Nordentoft M, Hougaard DM, Werge T, Mors O, Mortensen PB, Daly MJ, Faraone SV, Borglum AD, Neale BM. Discovery of the first genome-wide significant risk loci for attention deficit/hyperactivity disorder. Nat Genet. 2019 Jan;51(1):63-75. doi: 10.1038/s41588-018-0269-7. Epub 2018 Nov 26. <a href="https://pubmed.ncbi.nlm.nih.gov/30478444" target="TheNewWin">Citation on PubMed</a> or <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6481311/" target="TheNewWin">Free article on PubMed Central</a></li> <li>Faraone SV, Larsson H. Genetics of attention deficit hyperactivity disorder. Mol Psychiatry. 2019 Apr;24(4):562-575. doi: 10.1038/s41380-018-0070-0. Epub 2018 Jun 11. <a href="https://pubmed.ncbi.nlm.nih.gov/29892054" target="TheNewWin">Citation on PubMed</a> or <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6477889/" target="TheNewWin">Free article on PubMed Central</a></li> <li>Feldman ME, Charach A, Belanger SA. ADHD in children and youth: Part 2-Treatment. Paediatr Child Health. 2018 Nov;23(7):462-472. doi: 10.1093/pch/pxy113. Epub 2018 Oct 24. <a href="https://pubmed.ncbi.nlm.nih.gov/30681665" target="TheNewWin">Citation on PubMed</a> or <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6199639/" target="TheNewWin">Free article on PubMed Central</a></li> <li>Gorman DA, Gardner DM, Murphy AL, Feldman M, Belanger SA, Steele MM, Boylan K, Cochrane-Brink K, Goldade R, Soper PR, Ustina J, Pringsheim T. Canadian guidelines on pharmacotherapy for disruptive and aggressive behaviour in children and adolescents with attention-deficit hyperactivity disorder, oppositional defiant disorder, or conduct disorder. Can J Psychiatry. 2015 Feb;60(2):62-76. doi: 10.1177/070674371506000204. <a href="https://pubmed.ncbi.nlm.nih.gov/25886657" target="TheNewWin">Citation on PubMed</a> or <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4344948/" target="TheNewWin">Free article on PubMed Central</a></li> <li>Larsson H, Anckarsater H, Rastam M, Chang Z, Lichtenstein P. Childhood attention-deficit hyperactivity disorder as an extreme of a continuous trait: a quantitative genetic study of 8,500 twin pairs. J Child Psychol Psychiatry. 2012 Jan;53(1):73-80. doi: 10.1111/j.1469-7610.2011.02467.x. Epub 2011 Sep 16. <a href="https://pubmed.ncbi.nlm.nih.gov/21923806" target="TheNewWin">Citation on PubMed</a></li> <li>Subcommittee on Attention-Deficit/Hyperactivity Disorder; Steering Committee on Quality Improvement and Management; Wolraich M, Brown L, Brown RT, DuPaul G, Earls M, Feldman HM, Ganiats TG, Kaplanek B, Meyer B, Perrin J, Pierce K, Reiff M, Stein MT, Visser S. ADHD: clinical practice guideline for the diagnosis, evaluation, and treatment of attention-deficit/hyperactivity disorder in children and adolescents. Pediatrics. 2011 Nov;128(5):1007-22. doi: 10.1542/peds.2011-2654. Epub 2011 Oct 16. <a href="https://pubmed.ncbi.nlm.nih.gov/22003063" target="TheNewWin">Citation on PubMed</a> or <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4500647/" target="TheNewWin">Free article on PubMed Central</a></li> <li>Sudre G, Frederick J, Sharp W, Ishii-Takahashi A, Mangalmurti A, Choudhury S, Shaw P. Mapping associations between polygenic risks for childhood neuropsychiatric disorders, symptoms of attention deficit hyperactivity disorder, cognition, and the brain. Mol Psychiatry. 2020 Oct;25(10):2482-2492. doi: 10.1038/s41380-019-0350-3. Epub 2019 Jan 30. <a href="https://pubmed.ncbi.nlm.nih.gov/30700802" target="TheNewWin">Citation on PubMed</a></li> </ul> </div> </section> </div> </div> <div class="side"> <aside> <section><div class="side-section"> <div class="mp-img"> <img class="scale-with-grid" src="https://medlineplus.gov/images/GeneticCounseling.jpg" alt="Genetic Counseling"> </div> </div></section> <section><div class="side-section"> </div></section> <section><div class="side-section"> <div class="section-header"> <h2>Related Health Topics</h2> </div> <div class="section-body"> <ul class="relatedmp"> <li><a href="https://medlineplus.gov/attentiondeficithyperactivitydisorder.html">Attention Deficit Hyperactivity Disorder</a></li> <li><a href="https://medlineplus.gov/geneticdisorders.html">Genetic Disorders</a></li> </ul> </div> </div></section> <section><div class="side-section"> <div class="section-header red"> <h2>MEDICAL ENCYCLOPEDIA</h2> </div> <div class="section-body" id="more_encyclopedia"> <ul class="relatedmp" style="list-style: none; padding: 0;"> <li><a href="https://medlineplus.gov/ency/article/001551.htm">Attention deficit hyperactivity disorder</a></li> <li><a href="https://medlineplus.gov/ency/article/002048.htm">Genetics</a></li> <li><a href="https://medlineplus.gov/ency/article/007592.htm">Medicines for ADHD</a></li> </ul> </div> </div></section> <section><div class="side-section"> <div class="section-header"> <h2>Related Medical Tests</h2> </div> <div class="section-body"> <ul class="relatedmp"> <li><a href="https://medlineplus.gov/lab-tests/adhd-screening/">ADHD Screening</a></li> </ul> </div> </div></section> <section><div class="side-section"> <div class="section-header"> <h2>Understanding Genetics</h2> </div> <div class="section-body"> <ul class="relatedmp"> <li><a href="https://medlineplus.gov/genetics/understanding/consult/prognosis/">What is the prognosis of a genetic condition?</a></li> <li><a href="https://medlineplus.gov/genetics/understanding/mutationsanddisorders/mutationscausedisease/">How can gene variants affect health and development?</a></li> <li><a href="https://medlineplus.gov/genetics/understanding/inheritance/runsinfamily/">What does it mean if a disorder seems to run in my family?</a></li> <li><a href="https://medlineplus.gov/genetics/understanding/inheritance/inheritancepatterns/">What are the different ways a genetic condition can be inherited?</a></li> <li><a href="https://medlineplus.gov/genetics/understanding/consult/treatment/">How are genetic conditions treated or managed?</a></li> </ul> </div> </div></section> <section><div class="side-section"> <div class="section-header hide-offscreen"> <h2>Disclaimers</h2> </div> <div class="section-body no-header"> MedlinePlus links to health information from the National Institutes of Health and other federal government agencies. MedlinePlus also links to health information from non-government Web sites. See our <a href="https://medlineplus.gov/disclaimers.html">disclaimer</a> about external links and our <a href="https://medlineplus.gov/criteria.html">quality guidelines</a>. </div> </div></section> </aside> </div> <div class="bottom"> <section> <!-- <div class="from-ghr"> <img src="https://medlineplus.gov/images/fromGHR.png" alt="From Genetics Home Reference" /> <p>Genetics Home Reference has merged with MedlinePlus. Genetics Home Reference content now can be found in the "Genetics" section of MedlinePlus. <a href="https://medlineplus.gov/about/general/genetics/newhome/">Learn more</a></p> </div> --> <p>The information on this site should not be used as a substitute for professional medical care or advice. Contact a health care provider if you have questions about your health.</p> </section> </div> </article> </div> <div id="citation-how-to"> <button><span>Learn how to cite this page</span></button> </div> </div> <footer> <div id="mplus-footer"> <div class="footer1"> <ul class="secondarynav"> <li><a href="https://medlineplus.gov/about/">About MedlinePlus</a></li> <li><a href="https://medlineplus.gov/whatsnew/">What's New</a></li> <li><a href="https://medlineplus.gov/sitemap.html">Site Map</a></li> <li><a href="https://support.nlm.nih.gov/knowledgebase/category/?id=CAT-01231&category=medlineplus&from=https%3A//medlineplus.gov/genetics/condition/attention-deficit-hyperactivity-disorder/" target="_blank"><span>Customer Support</span></a></li> </ul> <ul class="follow-footer"> <li> <a href="https://medlineplus.gov/rss.html" class="follow-item">Subscribe to RSS<img src="https://medlineplus.gov/images/feed.png" class="social-media-toolkit-icon" alt="RSS" title="RSS"></a> </li> <li> <span class="follow-label">Follow us</span> <a href="https://twitter.com/medlineplus" class="follow-item" target="_blank"> <img src="https://medlineplus.gov/images/i_share_twitter.png" class="follow-icon" alt="X" title="X"> </a> <a href="https://facebook.com/Mplus.gov/" class="follow-item" target="_blank"> <img src="https://medlineplus.gov/images/i_share_fb.png" class="follow-icon" alt="Facebook" title="Facebook"> </a> <a href="https://www.instagram.com/mplusgov/" class="follow-item" target="_blank"> <img src="https://medlineplus.gov/images/Instagram_Glyph_Gradient_RGB.png" class="follow-icon" alt="Instagram" title="Instagram"> </a> </li> <li> <a href="https://medlineplus.gov/social-media-toolkit/" class="social-media-toolkit-item">Social Media Toolkit<img src="https://medlineplus.gov/images/i_social_media_toolkit.png" class="social-media-toolkit-icon" alt="Social Media Toolkit" title="Social Media Toolkit"></a> </li> </ul> </div> <div class="footer2"> <ul> <li><a href=" https://www.nlm.nih.gov/web_policies.html" target='_blank'>NLM Web Policies</a></li> <li><a href="https://medlineplus.gov/about/using/usingcontent/" >Copyright</a></li> <li><a href="https://medlineplus.gov/accessibility.html">Accessibility</a></li> <li><a href="https://medlineplus.gov/about/using/criteria/">Guidelines for Links</a></li> <li><a href="https://medlineplus.gov/plugins.html">Viewers & Players</a></li> <li><a href="https://www.hhs.gov/vulnerability-disclosure-policy/index.html" target="_blank">HHS Vulnerability Disclosure</a></li> <li><a href="https://medlineplus.gov/medlineplus-connect/">MedlinePlus Connect for EHRs</a></li> <li><a href="https://medlineplus.gov/about/developers/">For Developers</a></li> </ul> <div class="address"> <a href="https://www.nlm.nih.gov" target="_blank">National Library of Medicine</a> <span>8600 Rockville Pike, Bethesda, MD 20894</span> <a href="https://www.hhs.gov" target="_blank">U.S. Department of Health and Human Services</a> <a href="https://www.nih.gov" target="_blank">National Institutes of Health</a> </div> <div class="date"> <span id="lastupdate">Last updated July 1, 2019</span> </div> <div class="return-top"><a href="#top" title="Return to top"><img class="return-top-icon" alt="Return to top" src="https://medlineplus.gov/images/return-top.png"></a></div> </div> </div> </footer> </div> <script src="https://medlineplus.gov/jslib/jquery-3.6.0.min.js" type="text/javascript"></script> <script src="https://medlineplus.gov/jslib/mplus-frontend-controls-new.js" type="text/javascript"></script> <script src="https://medlineplus.gov/jslib/mplus-share.js?id=1112022" type="text/javascript"></script> <!--[if lte IE 9]><script src="//www.nlm.nih.gov/medlineplus/jslib/jquery.placeholder.js" type="text/javascript"></script><![endif]--> <script src="https://medlineplus.gov/jslib/control.js" type="text/javascript"></script> <script src="https://medlineplus.gov/uswds/js/uswds.min.js" type="text/javascript"></script> </body> </html>