Incidence of Female Androgenetic Alopecia (Female Pattern Alopecia)

January 2001 in “ Dermatologic Surgery ”

OʼTAR T. Norwood

female androgenetic alopecia female pattern alopecia androgenetic alopecia type II male androgenetic alopecia female pattern baldness male pattern baldness

TLDR Hair loss in women is common, starts in late 20s, and affects 30% of women over 50.

This study found that female androgenetic alopecia is quite common, beginning in the late 20s and reaching almost 30% in women over 50 years of age. It also suggests that female pattern alopecia may not be androgen dependent and is a different entity than male androgenetic alopecia. An unexpected observation was that many young women had characteristics of early type II male androgenetic alopecia.