Clinical features of androgenic alopecia in men

Hair loss in androgenic alopecia is long-standing, slowly progressive condition with a characteristic pattern (1)

• in majority of men AGA causes balding in the fronto temporal area and the vertex, which can be assessed using the Hamilton-Norwood classification
• in around 10% of patients, diffuse thinning of the crown with retention of the frontal hairline may be observed (a pattern similar to the Ludwig type observed in women)
• increased shedding or thinning (or both) during autumn and winter.

Patients may complain of itching and trichodynia initially (1).

Reference:

• 1. Blume-Peytavi U et al. S1 guideline for diagnostic evaluation in androgenetic alopecia in men, women and adolescents. Br J Dermatol. 2011;164(1):5-15.