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 frontotemporal 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. Lolli F et al. Androgenetic alopecia: a review. Endocrine. 2017 Jul;57(1):9-17