Abstract
• Decrease in hair density in the central (vertex, mid and frontal) scalp, bitemporal and parietal regions in women.
• Miniaturization of affected hairs.
• Two ages of onset: early (post-puberty to third decade) and late (age 40+ years).
• Signs of hyperandrogenism (hirsutism, irregular periods) or hyperandrogenemia occur in a subset of women with female pattern hair loss (FPHL) but most women with FPHL have neither.
• Many, but not all, affected women respond to antiandrogens or 5α-reductase inhibitors with increased hair growth indicating an androgen etiology in at least some cases of FPHL.
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Olsen, E. (2008). Female Pattern Hair Loss. In: Blume-Peytavi, U., Tosti, A., Trüeb, R. (eds) Hair Growth and Disorders. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-46911-7_10
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