April 2015 in “Andrology” HNG may help prevent the negative effects of chemotherapy on sperm production and white blood cell counts.
June 1998 in “Biomedicine & Pharmacotherapy” Medical treatments like chemotherapy and radiotherapy can harm sperm production, so freezing sperm before treatment is important for men who want children later.
August 2015 in “Dermatologica Sinica” Men with severe hair loss may have poorer sperm quality.
104 citations,
October 1999 in “The Journal of Urology” Finasteride doesn't harm male fertility or sperm quality, but may slightly reduce ejaculate volume.
11 citations,
March 2010 in “International Journal of Andrology” Finasteride 1-mg doesn't harm sperm or pregnancy chances.
17 citations,
January 2013 in “Our Dermatology Online” Dutasteride mesotherapy helps treat male hair loss but may harm sperm and sexual function.
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.
3 citations,
February 2018 in “Human Reproduction” A man with testotoxicosis was fertile despite low FSH levels, suggesting high testosterone may allow sperm production without FSH.
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.
23 citations,
January 2007 in “Archives of Andrology” Finasteride may negatively affect male fertility.
August 2024 in “The Journal of Urology” The 2024 guideline updates recommendations for genetic testing, imaging, and sperm retrieval in male infertility.
104 citations,
May 2019 in “F1000Research” Losing weight, fixing varicoceles, and using advanced sperm selection methods improve male infertility treatment outcomes.
77 citations,
June 2015 in “Nature Reviews Urology” Some common medications can harm male fertility, but many effects can be reversed.
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.
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,
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.
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.
18 citations,
June 2009 in “Journal of Molecular Endocrinology” Finasteride exposure harms tadpole reproduction and hormone balance.
17 citations,
May 2021 in “Journal of Assisted Reproduction and Genetics” COVID-19 may harm male fertility and damage the reproductive system.
1 citations,
July 2023 in “F&S Reviews” Some common medications may harm male fertility by affecting hormones, sperm production, and sexual function.
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.
October 1999 in “The Journal of Urology” New treatments and diagnostic methods for urological conditions show promise, but some lack sufficient accuracy for clinical use.
37 citations,
January 1991 in “Reproductive Toxicology” Finasteride reduces male rat fertility by causing issues with copulatory plug formation.
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.
August 2023 in “International journal of impotence research” Many dermatologists believe finasteride can cause sexual side effects and counsel patients about them.
April 2018 in “The Journal of Urology” Imipramine and pseudoephedrine treatment can effectively restore normal ejaculation in patients with diabetes, increasing their chances for pregnancy.
19 citations,
June 2021 in “The world journal of men's health” Using anabolic-androgenic steroids can harm men's reproductive health and increase the risk of heart problems and death.
4 citations,
June 2017 in “Endocrine Reviews” Dihydrotestosterone (DHT) mainly affects nearby cells, doesn't significantly change prostate hormonal environment or cancer risk, and doesn't play a main role in causing hair loss or acne. More research is needed on its effects on heart health, sexual function, and bone health.
April 2023 in “Clinical Chemistry and Laboratory Medicine” The document concludes that inflammation markers can be used in diabetes, vitamin D3 affects immune pathways, hyperthyroidism changes hormone levels, androgen levels help diagnose Adrenocortical Carcinoma, erectile dysfunction is linked to diabetes, hypogonadism is common in HIV-infected males, and hormones can be biomarkers for various conditions.
October 2010 in “Journal of Men's Health” Some patients may experience lasting sexual dysfunction, depression, and other side effects from 5α-reductase inhibitor therapy.