Pneumonia - What Is Pneumonia?

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class='breacrumb-break'><i class="fas fa-angle-right"></i></li><li class='breadcrumb-current'>Pneumonia</li></ul></div></div> </div> <div class="view-content"> <div class="subnav-menu-wrapper responsive-container responsive-container-constrained component-health-topics-blue"> <ul class="subnav-menu"> <li class="nav-active-trail nav-active section-menu-item subnav-link"> <a href="/health/pneumonia" aria-label="What Is Pneumonia? -Pneumonia" hreflang="en">What Is Pneumonia? </a> </li> <li class="section-menu-item subnav-link"> <a href="/health/pneumonia/symptoms" aria-label="Symptoms-Pneumonia" hreflang="en">Symptoms</a> </li> <li class="section-menu-item subnav-link"> <a href="/health/pneumonia/diagnosis" aria-label="Diagnosis-Pneumonia" hreflang="en">Diagnosis</a> </li> <li class="section-menu-item subnav-link"> <a href="/health/pneumonia/causes" aria-label="Causes and Risk Factors -Pneumonia" hreflang="en">Causes and Risk Factors </a> </li> <li class="section-menu-item subnav-link"> <a href="/health/pneumonia/prevention" aria-label="Prevention -Pneumonia" hreflang="en">Prevention </a> </li> <li class="section-menu-item subnav-link"> <a href="/health/pneumonia/treatment" aria-label="Treatment-Pneumonia" hreflang="en">Treatment</a> </li> <li class="section-menu-item subnav-link"> <a href="/health/pneumonia/recovery" aria-label="Recovery-Pneumonia" hreflang="en">Recovery</a> </li> </ul> </div> </div> </div> </div> <div class="block block-nhlbi-health-topics block-nhlbi-health-topics-more-info"> <div class="field field--name-field-component-more-information field--type-entity-reference-revisions field--label-hidden field__item"> <div class="paragraph paragraph--type--component-more-information paragraph--view-mode--default responsive-container responsive-container-constrained component-more-information component-more-information-theme-blue"> <div class="health-topics-more-information"> <p>MORE INFORMATION</p> <div class="clinical-trials-info-link"> <i class="fas fa-notes-medical"></i> <a href="/research/clinical-trials?f%5B0%5D=disease_or_condition_name%3APneumonia"> Participate in a Study </a> </div> </div> </div> </div> </div> </div> <div class="layout__region layout__region--second"> <div class="field field--name-field-health-topic node-theme-blue field__item block block-nhlbi-health-topics block-nhlbi-health-topics-book-name"> <div>Pneumonia</div> </div> <div class="block block-layout-builder block-field-blocknodehealth-topicstitle"> <h1 class="field field--name-title field--type-string field--label-hidden responsive-container responsive-container-constrained field__item"><span class="ht-kicker">Pneumonia </span>What Is Pneumonia? <hr> </h1> </div> <div class="block block-addtoany block-addtoany-block"> <div class="responsive-container responsive-container-constrained"> <span class="a2a_kit a2a_kit_size_24 addtoany_list" data-a2a-url="https://www.nhlbi.nih.gov/health/pneumonia" data-a2a-title="What Is Pneumonia? "> <a class="a2a_dd addtoany_share" href="https://www.addtoany.com/share#url=https%3A%2F%2Fwww.nhlbi.nih.gov%2Fhealth%2Fpneumonia&title=What%20Is%20Pneumonia%3F%20"> <img src="/themes/custom/nhlbi/images/share-alt-icon.svg" alt="Share"> </a> <a class="a2a_button_email"></a> <a class="a2a_button_print"></a> </span> </div> </div> <div class="language-switcher-language-url block block-language block-language-blocklanguage-content" role="navigation"> <div class="responsive-container responsive-container-constrained"><h2 class="visually-hidden" aria-label="Switch to Espanol">Language switcher</h2><ul class="links"><li hreflang="en" data-drupal-link-system-path="node/92887" class="is-active" aria-current="page"><a href="/health/pneumonia" class="language-link is-active" hreflang="en" data-drupal-link-system-path="node/92887" aria-current="page">English</a></li><li hreflang="es" data-drupal-link-system-path="node/92887"><a href="/es/salud/neumonia" class="language-link" hreflang="es" data-drupal-link-system-path="node/92887">Espa帽ol</a></li></ul> </div> </div> <div class="block block-layout-builder block-field-blocknodehealth-topicsfield-component-page-links"> </div> <div class="block block-layout-builder block-field-blocknodehealth-topicsfield-component-sections"> <div class="field field--name-field-component-sections field--type-entity-reference-revisions field--label-hidden"> <div class='field__items'> <div class="paragraph component component-section component-theme-white component-section-theme-white component-section-node-theme- paragraph--type--component-section paragraph--view-mode--default"> <div class="responsive-container responsive-container-constrained"> <div class="field field--name-field-component-section-content field--type-text-long field--label-hidden clearfix field__item"> <figure class="align-right b-loaded caption caption-img "> <img alt="Pneumonia, caused by bacteria. Figure A shows pneumonia affecting part of the left lung. Figure B shows healthy alveoli (air sacs). Figure C shows alveoli filled with mucus." data-entity-type="file" data-entity-uuid="3dd24287-6680-4b84-93f1-4bc4a602e302" height="385" width="465" data-src="/sites/default/files/inline-images/pneumonia.png" src="/modules/custom/nhlbi_blazy/images/clear.png" class="b-lazy"> <figcaption><em>Pneumonia, caused by bacteria. Figure A shows pneumonia affecting part of the left lung. Figure B shows healthy alveoli (air sacs). Figure C shows alveoli filled with mucus.</em></figcaption> </figure> <p>Pneumonia is an infection that affects one or both lungs. It causes the air sacs, or alveoli, of the lungs to fill up with fluid or pus. Bacteria, viruses, or fungi may <a href="/health/pneumonia/causes">cause</a> pneumonia. <a href="/health/pneumonia/symptoms">Symptoms</a> can range from mild to serious and may include a cough with or without mucus (a slimy substance), fever, chills, and trouble breathing. How serious your pneumonia is depends on your age, your overall health, and what caused your infection.</p><p>To <a href="/health/pneumonia/diagnosis">diagnose</a> pneumonia, your healthcare provider will review your medical history, perform a physical exam, and order diagnostic tests such as a <a href="/health/lung-tests">chest X-ray</a>. This information can help determine what type of pneumonia you have.</p><p><a href="/health/pneumonia/treatment">Treatment</a> for pneumonia may include antibiotic, viral, or fungal medicines. It may take several weeks to <a href="/health/pneumonia/recovery">recover from pneumonia</a>. If your symptoms get worse, you should see a healthcare provider right away. If you have severe pneumonia, you may need to go to the hospital for antibiotics given through an intravenous (IV) line and <a href="/health/lung-treatments">oxygen therapy</a>.</p><p>Some types of pneumonia can be <a href="/health/pneumonia/prevention">prevented</a> by vaccines. Good hygiene and <a href="/health/heart-healthy-living">heart-healthy living</a> can also lower your risk for pneumonia.</p><p> <div data-entity-type="node" data-entity-uuid="29389e35-99f0-437d-94e2-524392d17210" data-entity-embed-display="entity_reference:entity_reference_entity_view" data-entity-embed-display-settings="{"view_mode":"default","data-callout-width":"full"}" data-embed-button="node" data-langcode="en" class="callout-embed-width-full entity-embed-callout embedded-entity"> <article class="node node--type-callout node--promoted node--view-mode-callout-descriptive blue"> <div class="node__content"> <div class="component-callout-container component-callout-container-descriptive component-callout-container-descriptive-blue component-callout-container-descriptive-white callout-descriptive-with-image"> <div class="callout-descriptive"> <div class="callout-descriptive-image"> <div class="field field--name-field-callout-descriptive-image field--type-image field--label-hidden 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