68 citations
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February 2019 in “Urology” Hormonal treatment in transgender women reduces semen quality, but stopping treatment may improve it.
June 2026 in “The Journal of Sexual Medicine” This study determined that men taking finasteride 1 mg/day exhibited significantly reduced sperm production and morphology compared to controls, although there were no notable changes in hormonal, sexual, or psychological function.
April 2026 in “The Journal of Urology” This study found that men taking 1 mg/day of finasteride had significantly reduced sperm production and morphology but similar hormonal, sexual, and psychological profiles compared to controls, suggesting finasteride affects semen quality without altering other physiological functions.
16 citations
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January 2017 in “Asian journal of andrology/Asian Journal of Andrology” This study found that older age at puberty may be associated with lower semen quality and altered reproductive hormone levels in young men, though only some results were statistically significant.
August 2025 in “International Journal of Molecular Sciences” This meta-analysis found that among topical OTC treatments for male androgenetic alopecia, minoxidil 5% applied twice daily was the most effective in increasing total hair density over 24 weeks.