October 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” A small BOTOX dose improved sperm production and movement in older mice.
March 2013 in “Reactions Weekly” A man's fertility improved after he stopped taking finasteride but worsened again when he restarted the medication.
18 citations
,
June 2009 in “Journal of Molecular Endocrinology” Finasteride exposure harms tadpole reproduction and hormone balance.
37 citations
,
February 2005 in “Journal of Investigative Dermatology” Overexpression of SSAT causes hair loss and skin issues, but reducing putrescine can help.
August 2015 in “Dermatologica Sinica” Men with severe hair loss may have poorer sperm quality.
January 2016 in “ISBN: 978-84-608-9184-0”
December 2023 in “Urogenital tract infection” Seminal bacteria can lower sperm quality in subfertile men.
1 citations
,
May 2024 in “The Journal of Sexual Medicine” Clomiphene Citrate can quickly restore fertility in some men after long-term steroid abuse.
13 citations
,
March 1999 in “Biochemical Journal” Overexpressing SSAT in mice makes them highly sensitive to polyamine analogues, causing liver damage and high mortality.
June 2026 in “The Journal of Sexual Medicine” Finasteride 1 mg reduces semen quality without affecting hormones.
August 2025 in “Andrology” Abraham's family infertility may have a genetic explanation.
104 citations
,
October 1999 in “The Journal of Urology” Finasteride doesn't harm male fertility or sperm quality, but may slightly reduce ejaculate volume.
10 citations
,
October 2020 in “Microscopy and Microanalysis” Resveratrol helps prevent finasteride-induced damage in male rats, improving reproductive function.
Finasteride improves hair but may reduce sperm quality at higher doses.
January 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Finasteride may be a promising treatment for recurrent priapism in sickle cell anemia.
2 citations
,
October 2000 in “The Journal of Urology” Finasteride daily doesn't affect sperm production or semen in young men.
91 citations
,
July 2004 in “Journal of Biological Chemistry” Overexpressing SSAT enzyme reduces prostate tumor growth in mice.
November 2012 in “Experimental and Clinical Endocrinology & Diabetes” A new genetic mutation causes severe Leydig cell hypoplasia, affecting sexual development.
October 2010 in “Journal of Men's Health” Larger prostate size in older men may be linked to poorer semen quality and fertility issues.
September 2008 in “Fertility and Sterility” Men and women in infertile couples feel using donor sperm may cause more stress and marital issues than using donor eggs.
111 citations
,
May 2001 in “Human reproduction update” Insufficient androgen action in male fetuses can cause genital development issues due to genetic mutations or environmental chemicals.
Finasteride causes reproductive malformations in male rats.
6 citations
,
November 2018 in “Journal of molecular histology” Testosterone increases fluid secretion and aquaporin expression in the vas deferens, which is important for male fertility.
April 2017 in “Reactions Weekly” Finasteride may cause weak ejaculation and reduced semen volume.
Certain medications can negatively impact male fertility.
26 citations
,
September 2005 in “Pharmacology Biochemistry and Behavior” 5alpha-reductase 2 is crucial for proper male brain development and sexual differentiation.
23 citations
,
March 1998 in “BMJ” Haemochromatosis can cause infertility by affecting hormone glands.
30 citations
,
August 1984 in “Journal of the American Academy of Dermatology” Low-sulfur hair syndrome can cause UVB sensitivity and testicular failure.
7 citations
,
April 2015 in “General and Comparative Endocrinology” Finasteride negatively affects fish reproduction and gonadal development.
April 2020 in “The FASEB Journal” Finasteride may cause lasting sexual issues by altering specific genes in human cells.