TLDR Finasteride may improve sperm count in subfertile men with low sperm count.
The effects of finasteride on semen and hormonal parameters in subfertile men were investigated in a study of 24 men. 57% of those with severe oligospermia had an increase in sperm count after cessation of finasteride, with no decrease in sperm count observed. The study concludes that finasteride should be discontinued in subfertile men with oligospermia and used with caution in men interested in having children.
54 citations
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September 2013 in “Fertility and Sterility” Finasteride can reduce fertility in some men, but stopping it increases sperm count.
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February 2007 in “The Journal of Clinical Endocrinology and Metabolism” Dutasteride and finasteride may reduce sperm count and volume but don't affect movement or shape; effects are reversible after stopping.
January 2026 in “Frontiers in Pharmacology” Certain drugs can cause male infertility, so fertility counseling and sperm preservation are advised.
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January 2017 in “Fertility and Sterility” Urologic diseases and treatments in older men can negatively affect fertility, and doctors should talk to patients about this.
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July 2013 in “Dermatologic therapy” Some dermatological medications can impair male fertility, so consult a doctor before trying to conceive.