The safety and efficacy of finasteride for transgender men with androgenetic alopecia: a case series

Abstract Background Testosterone replacement therapy is commonly used in transgender men for masculinization. One of the most common adverse effects of testosterone replacement therapy is androgenetic alopecia. In Japan, finasteride is approved exclusively for cisgender men and is not indicated for...

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Bibliographic Details

Published in:	Journal of Medical Case Reports
Main Authors:	Yusuke Tominaga, Tomoko Kobayashi, Yuko Matsumoto, Tomoko Sako, Takatoshi Moriwake, Satoshi Horii, Takuya Sadahira, Satoshi Katayama, Takehiro Iwata, Shingo Nishimura, Kensuke Bekku, Kohei Edamura, Masami Watanabe, Motoo Araki
Format:	Article
Language:	English
Published:	BMC 2025-09-01
Subjects:	Finasteride Dihydrotestosterone Transgender men Androgenetic alopecia Resumption of menstruation
Online Access:	https://doi.org/10.1186/s13256-025-05562-y