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</div><div><span>Male pattern baldness</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">Male pattern baldness</h1>
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</noscript></div><div class="main"><div id="ency_summary"><p>Male pattern baldness is the most common type of hair loss in men.</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>Male pattern baldness is related to your genes and male sex hormones. It usually follows a pattern of receding hairline and hair thinning on the crown.</p><p>Each strand of hair sits in a tiny hole (cavity) in the skin called a follicle. Generally, baldness occurs when the hair follicle shrinks over time, resulting in shorter and finer hair. Eventually, the follicle does not grow new hair. The follicles remain alive, which suggests that it is still possible to grow new hair.</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>The typical pattern of male baldness begins at the hairline in the front of the head. The hairline gradually moves backward (recedes) and forms an "M" shape. A circular area on the back of the head (vertex) often thins and expands in size over time. Eventually the hair becomes finer, shorter, and thinner, and creates a U-shaped (or horseshoe) pattern of hair around the sides of the head and a bald area on the back of the head.</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>Classic male pattern baldness is usually diagnosed based on the appearance and pattern of the hair loss. </p><p>Hair loss may be due to other conditions. This may be true if hair loss occurs in patches, you shed a lot of hair, your hair breaks, or you have hair loss along with redness, <a test="test" href="./003226.htm">scaling</a>, pus, or pain.</p><p>A <a test="test" href="./003840.htm">skin biopsy</a>, blood tests, or other procedures may be needed to diagnose other disorders that cause hair loss.</p><p>Hair analysis is not accurate for diagnosing hair loss due to nutritional or similar disorders. But it may reveal substances such as arsenic or lead.</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>Treatment is not necessary if you are comfortable with your appearance. Hair weaving, hairpieces, or change of hairstyle may disguise the hair loss. This is usually the least expensive and safest approach for male baldness.</p><p>Medicines that treat male pattern baldness include:</p><ul><li>Minoxidil (Rogaine), a solution that is applied directly to the scalp to stimulate the hair follicles. It slows hair loss for many men, and some men grow new hair. Hair loss returns when you stop using this medicine.</li><li>Finasteride (Propecia, Proscar), a pill that interferes with the production of a highly active form of testosterone that is linked to baldness. It slows hair loss. It works slightly better than minoxidil. Hair loss returns when you stop using this medicine.</li><li>Dutasteride is similar to finasteride but may be more effective.</li></ul><p>Other treatments that are being investigated include:</p><ul><li>Platelet-Rich Plasma (PRP) injected into the scalp to stimulate hair growth. This involves drawing your blood, collecting a portion that is rich in platelets, and injecting the areas of hair loss over a series of sessions.</li><li>Hair transplants consist of removing tiny plugs of hair from areas where the hair is continuing to grow and placing them in areas that are balding. The procedure usually requires multiple sessions and may be expensive.</li><li>The use of laser or light caps or helmets to stimulate hair follicles.</li></ul><p>Suturing hair pieces to the scalp is not recommended. It can result in scars, infections, and <a test="test" href="./001353.htm">abscess</a> of the scalp. The use of hair implants made of artificial fibers was banned by the FDA because of the high rate of infection.</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>Male pattern baldness does not indicate a medical disorder, but it may affect self-esteem or cause anxiety. The hair loss is usually permanent.</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>Call your health care provider if:</p><ul><li><div>Your hair loss occurs in an atypical pattern, including rapid hair loss, widespread shedding, hair loss in patches, or hair breakage.</div></li><li><div>Your hair loss occurs with itching, skin irritation, redness, scaling, pain, or other symptoms.</div></li><li><div>Your hair loss begins after starting a medicine.</div></li><li><div>You want to treat your hair loss.</div></li></ul></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>Alopecia in men; Baldness - male; Hair loss in men; Androgenetic alopecia</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/17083t.jpg" alt="Male pattern baldness" title="Male pattern baldness" class="side-img"/><a href="../imagepages/17083.htm">Male pattern baldness</a></li>
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<li><img src="//medlineplus.gov/ency/images/ency/tnails/19647t.jpg" alt="Hair follicle" title="Hair follicle" class="side-img"/><a href="../imagepages/19647.htm">Hair follicle</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. Hair diseases. In: Dinulos JGH, ed. <em>Habif's Clinical Dermatology</em>. 7th ed. Philadelphia, PA: Elsevier; 2021:chap 24.</p><p>Fisher J. Hair restoration. In: Rubin JP, Neligan PC, eds. <em>Plastic Surgery, Volume 2: Aesthetic Surgery</em>. 4th ed. Philadelphia, PA: Elsevier; 2018:chap 21.</p><p>Hesseler MJ, Shyam N. Platelet-rich plasma and its utilities in alopecia: a systematic review. <em>Dermatol Surg</em>. 2020;46(1):93-102. PMID: 31211715 <a href="https://pubmed.ncbi.nlm.nih.gov/31211715" target="_blank">pubmed.ncbi.nlm.nih.gov/31211715/</a>.</p><p>Sperling LC, Sinclair RD, El Shabrawi-Caelen L. Alopecias. In: Bolognia JL, Schaffer JV, Cerroni L, eds. <em>Dermatology</em>. 4th ed. Philadelphia, PA: Elsevier; 2018:chap 69.</p><p>Torres AE, Lim HW. Photobiomodulation for the management of hair loss.<em> Photodermatol Photoimmunol Photomed</em>. 2021;37(2):91-98. PMID: 33377535 <a href="https://pubmed.ncbi.nlm.nih.gov/33377535" target="_blank">pubmed.ncbi.nlm.nih.gov/33377535/</a>.</p></div></div></section>
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<section><div class="section"><div class="section-header"><div class="section-title"><h2>Review Date 5/31/2023</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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