34 citations
,
January 2004 in “Revista do Hospital das Clínicas” Finasteride may worsen infertility in men with existing issues, but stopping it can improve sperm health.
33 citations
,
April 2015 in “Current Opinion in Endocrinology, Diabetes and Obesity” 5α reductase inhibitors treat hair loss but may cause sexual side effects and risks.
23 citations
,
January 2007 in “Archives of Andrology” Finasteride may negatively affect male fertility.
2 citations
,
March 2022 in “Laboratory Animal Research” A mild botulinum toxin injection improved sperm production and movement in aging mice.
January 2026 in “Frontiers in Pharmacology” Certain drugs can cause male infertility, so fertility counseling and sperm preservation are advised.
April 2015 in “Andrology” HNG may help prevent the negative effects of chemotherapy on sperm production and white blood cell counts.
13 citations
,
January 2019 in “Endocrine journal” Dihydrotestosterone treatment can help penis growth in boys with 5α-reductase deficiency but doesn't fully normalize size after puberty.
72 citations
,
October 1998 in “Baillière's clinical endocrinology and metabolism” Long-term testosterone therapy can cause hormone suppression, affect prostate and heart health, and alter physical characteristics, but does not increase prostate cancer risk and needs more research for full risk assessment.
65 citations
,
March 2016 in “Lasers in Medical Science” Most low-level light therapy studies did not accurately report how light was measured, affecting treatment reliability.
39 citations
,
January 2019 in “The World Journal of Men's Health” Testosterone replacement therapy can prevent men from fathering children and should not be used by those wanting to stay fertile.
17 citations
,
May 2021 in “Journal of Assisted Reproduction and Genetics” COVID-19 may harm male fertility and damage the reproductive system.
14 citations
,
January 2018 in “Advances in Clinical Chemistry” The document concludes that hormonal biomarkers are key for diagnosing hyperandrogenemia in women and hypogonadism in men.
8 citations
,
December 2016 in “Revista Medica De Chile” Finasteride can cause sexual dysfunction, sperm changes, and affect bone density and metabolism.
2 citations
,
March 2021 in “Reproduction” Finasteride may affect male fertility by interfering with specific sperm signaling.
2 citations
,
September 2017 in “Archives of Medical Science” Finasteride affects offspring's antioxidant enzymes in epididymis, possibly disrupting sperm maturation.
March 2025 in “Daehan saengsik uihak hoeji/Clinical and experimental reproductive medicine” Long-term use of dutasteride for hair loss may harm semen quality.
June 2021 in “Archives of Advances in Biosciences” Finasteride reduces sperm count and quality and alters hormone levels in mice.
48 citations
,
December 2019 in “Reproductive Biology and Endocrinology” More research is needed to confirm sperm DNA fragmentation as a reliable tool for diagnosing male infertility.
January 2025 in “HORMONES” Gender-affirming hormone treatments need better patient-focused outcome measurements and standardized data collection.
5 citations
,
December 2012 in “PubMed” Stopping the use of the drug finasteride can improve sperm count and does not prevent normal conception, but caution is advised when trying to conceive.
2 citations
,
December 2017 in “Theriogenology” Testosterone increases acidification in the vas deferens by up-regulating V-ATPase.
April 2026 in “The Journal of Urology” Finasteride 1 mg/day reduces semen quality without affecting hormones or sexual function.
January 2018 in “日本薬理学会年会要旨集 =” Stopping finasteride improves sperm quality but not semen volume in young men.
1 citations
,
July 2023 in “F&S Reviews” Some common medications may harm male fertility by affecting hormones, sperm production, and sexual function.
August 2024 in “The Journal of Urology” The 2024 guideline updates recommendations for genetic testing, imaging, and sperm retrieval in male infertility.
16 citations
,
January 2017 in “Asian journal of andrology/Asian Journal of Andrology” Men who start puberty later may have lower sperm quality and different hormone levels in adulthood.
November 2024 in “Asian Journal of Biological Sciences” High consumption of avocado leaves harms male fertility.
September 2024 in “Reproduction and Fertility” New methods may speed up drug development for male subfertility.
April 2024 in “JCEM case reports” A man's breast enlargement from low-dose finasteride for hair loss didn't go away, even with treatment, and might be more common than reported.
18 citations
,
October 2021 in “Frontiers in Physiology” Lipocalin-Type Prostaglandin D2 Synthase (L-PGDS) is a protein that plays many roles in the body, including sleep regulation, pain management, food intake, and protection against harmful substances. It also affects fat metabolism, glucose intolerance, cell maturation, and is involved in various diseases like diabetes, cancer, and arthritis. It can influence sex organ development and embryonic cell differentiation, and its levels can be used as a diagnostic marker for certain conditions.