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Male pattern alopecia in Adult
See also in: Hair and Scalp
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Male pattern alopecia in Adult

See also in: Hair and Scalp
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Contributors: Vivian Wong MD, PhD, Susan Burgin MD, Mary Gail Mercurio MD
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Synopsis

Male pattern alopecia (MPA), or androgenetic alopecia, refers to the common patterned hair loss affecting many men and some women. MPA is mediated by dihydrotestosterone, the potent form of testosterone, which induces miniaturization of androgen-sensitive hair follicles. There is a gradual conversion of terminal hairs into indeterminate and finally vellus hairs. The condition may profoundly affect self-esteem and impair psychosocial functioning for some men, and an association between early onset MPA and coronary artery disease has been shown. The hair loss has a strong genetic basis. The incidence is highest in white men, followed by Asian men and black men. The onset is usually prior to age 40.

Codes

ICD10CM:
L64.9 – Androgenic alopecia, unspecified

SNOMEDCT:
201144006 – Alopecia hereditaria

Look For

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Diagnostic Pearls

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Differential Diagnosis & Pitfalls

Other causes of nonscarring alopecia should be considered if the hair loss does not fit the typical frontal / temporal or vertex pattern of hair loss.

Best Tests

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Management Pearls

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Therapy

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References

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Last Reviewed: 07/20/2017
Last Updated: 07/20/2017
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Male pattern alopecia in Adult
See also in: Hair and Scalp
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Male pattern alopecia : Frontal scalp, Vertex scalp, Non-scarring alopecia
Clinical image of Male pattern alopecia

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