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</div><div><span>Keloids</span></div></div>
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<article><div id="d-article"><div class="page-info"><div class="page-title"><a name="start" id="start">
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</a><h1 class="with-also" itemprop="name">Keloids</h1>
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</noscript></div><div class="main"><div id="ency_summary"><p>A keloid is a growth of extra scar tissue. It occurs where the skin has healed after an injury.</p></div><section><div class="section"><div class="section-header"><div class="section-title"><h2>Causes</h2></div><div class="section-button"><button type="submit" aria-controls="section-1" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-1"><p>Keloids can form after skin injuries from:</p><ul><li><a test="test" href="./000873.htm">Acne</a></li><li>Burns</li><li><a test="test" href="./001592.htm">Chickenpox</a></li><li>Ear or body piercing</li><li>Minor scratches</li><li>Cuts from surgery or trauma</li><li>Vaccination sites </li></ul><p>Keloids are most common in people younger than 30. Black people, Asians, and Hispanics are more prone to developing keloids. Keloids often run in families. Sometimes, a person may not recall what injury caused a keloid to form.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Symptoms</h2></div><div class="section-button"><button type="submit" aria-controls="section-2" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-2"><p>A keloid may be:</p><ul><li>Flesh-colored, red, or pink</li><li>Located over the site of a wound or injury</li><li>Lumpy or ridged</li><li>Tender and itchy</li><li>Irritated from friction such as rubbing on clothing </li></ul><p>A keloid will tan darker than the skin around it if exposed to the sun during the first year after it forms. The darker color may not go away.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Exams and Tests</h2></div><div class="section-button"><button type="submit" aria-controls="section-3" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-3"><p>Your doctor will look at your skin to see if you have a keloid. A <a test="test" href="./003840.htm">skin biopsy</a> may be done to rule out other types of skin growths (tumors).</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Treatment</h2></div><div class="section-button"><button type="submit" aria-controls="section-4" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-4"><p>Keloids often do not need treatment. If the keloid bothers you, discuss your concern with a skin doctor (dermatologist). The doctor may recommend these treatments to reduce the size of the keloid:</p><ul><li>Corticosteroid injections</li><li>Freezing (cryotherapy)</li><li>Laser treatments</li><li>Radiation</li><li>Surgical removal</li><li>Silicone gel or patches </li></ul><p>These treatments, especially surgery, sometimes cause the keloid scar to become larger.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Outlook (Prognosis)</h2></div><div class="section-button"><button type="submit" aria-controls="section-5" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-5"><p>Keloids usually are not harmful to your health, but they may affect how you look.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>When to Contact a Medical Professional</h2></div><div class="section-button"><button type="submit" aria-controls="section-6" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-6"><p>Contact your health care provider if:</p><ul><li><div>You develop keloids and want to have them removed or reduced</div></li><li><div>You develop new symptoms</div></li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Prevention</h2></div><div class="section-button"><button type="submit" aria-controls="section-7" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-7"><p>When you are in the sun:</p><ul><li>Cover a keloid that is forming with a patch or adhesive bandage.</li><li>Use sunblock. </li></ul><p>Continue to follow these steps for at least 6 months after injury or surgery for adults. Children may need up to 18 months of prevention.</p><p>Imiquimod cream may help prevent keloids from forming after surgery. The cream may also prevent keloids from returning after they are removed.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Alternative Names</h2></div><div class="section-button"><button type="submit" aria-controls="section-Alt" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-Alt"><p>Keloid scar; Scar - keloid</p></div></div></section><section><div class="section sec-mb"><div class="section-header"><div class="section-title"><h2>Images</h2></div><div class="section-button"><button type="submit" aria-controls="section-tnails" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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<li><img src="//medlineplus.gov/ency/images/ency/tnails/2519t.jpg" alt="Keloid above the ear" title="Keloid above the ear" class="side-img"/><a href="../imagepages/2519.htm">Keloid above the ear</a></li>
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<li><img src="//medlineplus.gov/ency/images/ency/tnails/2521t.jpg" alt="Keloid - pigmented" title="Keloid - pigmented" class="side-img"/><a href="../imagepages/2521.htm">Keloid - pigmented</a></li>
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<li><img src="//medlineplus.gov/ency/images/ency/tnails/2903t.jpg" alt="Keloid - on the foot" title="Keloid - on the foot" class="side-img"/><a href="../imagepages/2903.htm">Keloid - on the foot</a></li>
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</ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>References</h2></div><div class="section-button"><button type="submit" aria-controls="section-Ref" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-Ref"><p>Dinulos JGH. Benign skin tumors. In: Dinulos JGH, ed. <em>Habif's Clinical Dermatology</em>. 7th ed. Philadelphia, PA: Elsevier; 2021:chap 20.</p><p>Patterson JW. Disorders of collagen. In: Patterson JW, ed. <em>Weedon's Skin Pathology</em>. 5th ed. Philadelphia, PA: Elsevier; 2021:chap 12.</p></div></div></section>
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<section><div class="section"><div class="section-header"><div class="section-title"><h2>Review Date 11/18/2022</h2></div><div class="section-button"><button type="submit" aria-controls="section-version" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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<div id="section-version" class="section-body"><p>Updated by: Elika Hoss, MD, Assistant Professor of Dermatology, Mayo Clinic, Scottsdale, AZ. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.</p>
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