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Androgenetic alopecia.

B M Piraccini1, A Alessandrini

  • 1Division of Dermatology, Department of Experimental Diagnostic and Specialty Medicine University of Bologna, Bologna, Italy - biancamaria.piraccini@unibo.it.

Giornale Italiano Di Dermatologia E Venereologia : Organo Ufficiale, Societa Italiana Di Dermatologia E Sifilografia
|February 26, 2014
PubMed
Summary
This summary is machine-generated.

Androgenetic alopecia (AGA), the most common hair loss, involves thinning due to dehydrotestosterone (DHT) affecting hair follicles. Scalp dermoscopy aids diagnosis and treatment monitoring for this progressive condition.

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Area of Science:

  • Dermatology
  • Endocrinology

Background:

  • Androgenetic alopecia (AGA) is the most prevalent form of alopecia, impacting a significant portion of adult men and women.
  • It is characterized by a progressive decrease in hair shaft diameter, length, and pigmentation.
  • The condition stems from the effects of dehydrotestosterone (DHT), a testosterone metabolite, on androgen-sensitive hair follicles.

Purpose of the Study:

  • To summarize the understanding of androgenetic alopecia (AGA).
  • To highlight the diagnostic and monitoring role of scalp dermoscopy in AGA.
  • To outline current medical treatment options for AGA.

Main Methods:

  • Review of the pathophysiology of androgenetic alopecia.
  • Description of diagnostic techniques, including scalp dermoscopy.
  • Summary of established medical treatments.

Main Results:

  • AGA presents differently in men (bitemporal recession, vertex thinning) and women (diffuse crown thinning).
  • Scalp dermoscopy is crucial for diagnosing AGA, differentiating it from other alopecias, staging severity, and tracking treatment response.
  • AGA is a progressive condition requiring ongoing management.

Conclusions:

  • Androgenetic alopecia is a common, progressive hair loss condition driven by DHT.
  • Scalp dermoscopy is an essential tool for comprehensive AGA management.
  • Available medical treatments include topical minoxidil, antiandrogen agents, and 5-alpha reductase inhibitors.