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.
17 citations
,
January 2013 in “Our Dermatology Online” Dutasteride mesotherapy helps treat male hair loss but may harm sperm and sexual function.
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
,
January 2023 in “Andrology” The testes produce sperm and hormones essential for male development.
3 citations
,
February 2017 in “Archives of Medical Science” Finasteride treatment changes Cx43 in rat testes, possibly causing fertility issues.
2 citations
,
April 2022 in “Annales d Endocrinologie” Recombinant gonadotropins improve future fertility in CHH patients.
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.
1 citations
,
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.
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.
Finasteride improves hair but may reduce sperm quality at higher doses.
May 2025 in “Veterinary Medicine and Science” Melatonin improved reproductive function in male Pomeranian dogs with Alopecia X, but more research is needed.
April 2019 in “Journal of the Endocrine Society” Mosaic Klinefelter syndrome can affect male fertility and may be missed in routine tests.
January 2017 in “Springer eBooks” Understanding genes and hormones is crucial for managing male puberty and sex development disorders.
January 2016 in “Springer eBooks” A 19-year-old male with delayed puberty was successfully treated for a condition that prevents normal hormone production.
January 2014 in “theses.fr (ABES)” Androgens regulate Sertoli cells and affect fertility through specific receptors and coregulators.
June 2021 in “Archives of Advances in Biosciences” Finasteride reduces sperm count and quality and alters hormone levels in mice.
5 citations
,
January 2017 in “Biomedical Research-tokyo” Long-term steroid abuse in athletes causes serious health risks, outweighing any benefits.
April 2020 in “Archivos españoles de urología” Dutasteride does not seem to change rat spermatogenesis or oxidative stress.