2 citations
,
March 2017 in “Canadian Urological Association journal” Clomiphene citrate improves fertility in men taking finasteride for hair loss.
Dutasteride did not change rat spermatogenesis or oxidative stress but needs more research.
5 citations
,
June 2008 in “Acta Cirurgica Brasileira” Finasteride causes sperm production decrease in Mesocricetus auratus.
January 2013 in “Reproductive Biology” 2 citations
,
December 2001 in “PubMed”
2 citations
,
October 2000 in “The Journal of Urology” Finasteride daily doesn't affect sperm production or semen in young men.
2 citations
,
October 1999 in “The Journal of Urology” 2 citations
,
March 2022 in “Laboratory Animal Research” A mild botulinum toxin injection improved sperm production and movement in aging mice.
70 citations
,
March 2016 in “Urologic Clinics of North America” The document explains how the male reproductive system works, its role in making testosterone, and how conditions like obesity can disrupt it, leading to low testosterone and fertility issues.
69 citations
,
February 1983 in “Gut” Men with coeliac disease may have hormone imbalances that could affect sexual function, but these can improve with better gut health.
49 citations
,
August 1996 in “The Journal of Clinical Endocrinology and Metabolism” The combination of cyproterone acetate and testosterone enanthate is highly effective in preventing sperm production and could be a good reversible male contraceptive.
40 citations
,
January 1973 in “Journal of Dairy Science” Zinc deficiency in male goats leads to poor hair growth, smaller testicles, reduced libido, and is hard to reverse.
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.
34 citations
,
January 2004 in “PubMed” DHT deficiency in rats reduces sperm content and affects testis structure over time.
26 citations
,
March 2001 in “PubMed” Men's fertility and sexual health decline with age, with reduced testosterone and virility, and many lose fertility by their eighties.
23 citations
,
October 2015 in “Andrology” New male hormonal contraceptives show promise but need more research on long-term effects and funding for larger trials.
23 citations
,
January 2007 in “Archives of Andrology” Finasteride may negatively affect male fertility.
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.
17 citations
,
May 2021 in “Journal of Assisted Reproduction and Genetics” COVID-19 may harm male fertility and damage the reproductive system.
10 citations
,
September 2015 in “Folia Histochemica Et Cytobiologica” Finasteride treatment in male rats can reduce fertility and affect sperm development in their offspring.
8 citations
,
July 2017 in “The Journal of Steroid Biochemistry and Molecular Biology” DHT affects testicular development and regulates spermatogenesis in some fish.
7 citations
,
January 2009 in “DOAJ (DOAJ: Directory of Open Access Journals)” D-004 did not harm sperm cells in mice.
6 citations
,
April 2022 in “Biomedicines” COVID-19 may harm male fertility by affecting sperm production.
4 citations
,
September 2020 in “Andrologia” Oregano extract helps fix testis and sperm damage caused by finasteride.
2 citations
,
January 2015 in “Springer eBooks” Environmental factors and exposure to toxins may contribute to male infertility by affecting sperm and hormone function.
2 citations
,
January 2014 in “Elsevier eBooks” The document explains how sperm cells are produced, the role of testosterone in this process, and how toxins can reduce sperm count and fertility.
Finasteride and dutasteride can harm male reproductive health, affecting sperm and causing sexual dysfunction.
April 2026 in “International Journal of Impotence Research” Anabolic steroid abuse can cause sexual, fertility, and health problems.
January 2026 in “Journal of Sexual and Mental Health” New male contraceptive pills show promise in reducing sperm production with mild side effects.