68 citations,
February 2019 in “Urology” Hormonal treatment in transgender women reduces semen quality, but stopping treatment may improve it.
54 citations,
September 2013 in “Fertility and Sterility” Finasteride can reduce fertility in some men, but stopping it increases sperm count.
15 citations,
September 2014 in “JAMA Dermatology” 195 citations,
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.
1 citations,
May 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.
February 2024 in “The Journal of Sexual Medicine” 5-α reductase inhibitors do not significantly affect male reproductive function but may reduce semen volume.
47 citations,
January 2021 in “Fertility and Sterility” COVID-19 might affect male fertility, but more research is needed to understand the full impact.
18 citations,
October 2018 in “Journal of The American Academy of Dermatology” Some skin medications can harm male fertility, but they don't seem to cause birth defects from father's exposure.
15 citations,
October 2012 in “International Urology and Nephrology” Low-dose finasteride may cause fertility issues, but stopping it can improve sperm quality and lead to pregnancy.
11 citations,
March 2010 in “International Journal of Andrology” Finasteride 1-mg doesn't harm sperm or pregnancy chances.
8 citations,
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.
June 2018 in “The Journal of Sexual Medicine” Finasteride does not negatively affect male reproductive function.
104 citations,
May 2019 in “F1000Research” Losing weight, fixing varicoceles, and using advanced sperm selection methods improve male infertility treatment outcomes.
38 citations,
December 2010 in “Fertility and Sterility” Finasteride may cause male infertility, stopping it can help.
2 citations,
January 2011 in “Yearbook of Urology” Stopping finasteride can improve sperm count in infertile men.
36 citations,
February 2011 in “Fertility and Sterility” Finasteride use may cause sperm damage and infertility, stopping it can improve sperm health.
March 2013 in “Reactions Weekly” A man's fertility improved after he stopped taking finasteride but worsened again when he restarted the medication.
2 citations,
March 2017 in “Canadian Urological Association journal” Clomiphene citrate improves fertility in men taking finasteride for hair loss.
77 citations,
June 2015 in “Nature Reviews Urology” Some common medications can harm male fertility, but many effects can be reversed.
December 2023 in “Urogenital tract infection” Seminal bacteria can lower sperm quality in subfertile men.
104 citations,
October 1999 in “The Journal of Urology” Finasteride doesn't harm male fertility or sperm quality, but may slightly reduce ejaculate volume.
August 2015 in “Dermatologica Sinica” Men with severe hair loss may have poorer sperm quality.
2 citations,
October 2000 in “The Journal of Urology” Finasteride daily doesn't affect sperm production or semen in young men.
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.
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.
18 citations,
July 2020 in “Basic and Clinical Andrology” Wait 3 months after COVID-19 before trying assisted reproduction and further research is needed on COVID-19's effects on male hormones and fertility.
1 citations,
September 2013 in “Fertility and Sterility” Finasteride discontinuation increases sperm count in men.
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.
October 2017 in “Springer eBooks” A thorough initial check-up is essential before sperm banking to ensure the best chance of preserving good quality sperm.