11 citations
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March 2010 in “International Journal of Andrology” Finasteride 1-mg doesn't harm sperm or pregnancy chances.
1 citations
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January 2011 in “Journal of Human Reproductive Sciences” Finasteride may decrease semen quality but not harm sperm production, and stopping the drug can improve semen quality; hyperprolactinemia can cause infertility but is treatable with medication.
581 citations
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October 1998 in “Journal of The American Academy of Dermatology” Finasteride safely and effectively treats male pattern hair loss, but may cause reversible sexual issues and harm male fetuses.
December 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Finasteride is risky during pregnancy, but the chance of harm from a male partner taking it is low if handled safely.
June 2026 in “The Journal of Sexual Medicine” Finasteride 1 mg reduces semen quality without affecting hormones.