November 2012 in “Experimental and Clinical Endocrinology & Diabetes” A new genetic mutation causes severe Leydig cell hypoplasia, affecting sexual development.
May 2023 in “Reactions Weekly” January 2013 in “Reactions Weekly” 
39 citations
,
January 2004 in “Physiological Research” Some men with early hair loss may have a condition similar to PCOS in women.
February 2023 in “Vaccines” COVID-19 may harm male reproductive health and lower testosterone levels, potentially affecting fertility and causing erectile dysfunction. More research is needed.
June 2020 in “Mağallaẗ al-anbār li-l-ʻulūm al-bayṭariyyaẗ” Finasteride reduces fertility in male rats.
143 citations
,
August 1991 in “Endocrinology” Androgens, like testosterone, are crucial for early testicular descent in rats.
March 2025 in “Archives of Dermatological Research” Early-onset hair loss in Egyptian males is linked to genetics, hormones, and lifestyle factors like smoking and diet.
January 2003 in “Zhonghua shiyan waike zazhi” Androgen, especially DHT, is crucial for erectile function in rats by affecting specific brain neurons.
January 2025 in “Case Reports in Genetics” A rare gene variant causes sexual development issues in siblings, needing personalized treatment.
September 2022 in “Translational Andrology and Urology” Finasteride may cause lasting sexual and mental health issues, and genetic screening could help prevent them.
21 citations
,
December 1977 in “Journal of pediatric surgery” Individuals with male pseudohermaphroditism often do better raised as females with early surgery.
October 2012 in “Organic Process Research & Development” A new method was developed to purify finasteride for better medical use.
10 citations
,
December 2020 in “Frontiers in Medicine” Men are more at risk for severe COVID-19 due to biological differences, suggesting the need for targeted treatments.
September 2017 in “ics.org” 1 citations
,
September 2018 in “Vestnik Vitebskogo gosudarstvennogo medicinskogo universiteta” 
January 2014 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” The research found that certain genes are linked to male pattern baldness, but these same genes do not affect female pattern hair loss.
9 citations
,
February 2020 in “International Journal of Endocrinology” Some men with early hair loss may have a male version of PCOS, affecting hormones and increasing health risks.
47 citations
,
January 2021 in “Fertility and Sterility” COVID-19 might affect male fertility, but more research is needed to understand the full impact.
April 2012 in “The Journal of Urology” Persistent ED in Propecia users is not due to abnormal blood flow.
10 citations
,
July 2022 in “BMC Biology” Sex-limited chromosomes can affect traits not related to reproduction.
2 citations
,
August 2021 in “The Journal of Urology” The procedure involving seminal vesiculoscopy, TURED, and balloon dilation effectively treated a man's hematospermia and improved his dysorgasmia.
September 2003 in “Reactions Weekly” 9 citations
,
August 1992 in “The Journal of Clinical Endocrinology and Metabolism” September 2025 in “Toxicology” Long-term use of finasteride and minoxidil may harm male reproductive health in mice.
4 citations
,
September 2020 in “Andrologia” Oregano extract helps fix testis and sperm damage caused by finasteride.
1 citations
,
January 2022 in “Springer eBooks” 1 citations
,
October 2024 in “JCEM Case Reports” 5α-reductase deficiency can cause ambiguous genitalia and gender dysphoria, treatable with testosterone.
June 2021 in “Archives of Advances in Biosciences” Finasteride reduces sperm count and quality and alters hormone levels in mice.
1 citations
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January 2015 in “Case reports in endocrinology” Women with nonclassical congenital adrenal hyperplasia may have a higher risk of fertility issues and miscarriages, and should get genetic counseling.