104 citations
,
October 1999 in “The Journal of Urology” This study concluded that daily treatment with 1 mg finasteride did not affect spermatogenesis or semen production in young men and had small, reversible effects on prostate volume and serum PSA.
June 2022 in “Journal of Experimental Biology and Agricultural Sciences” This study found that steroid hormones influence the quality indicators of fresh and cryopreserved stallion sperm, with testosterone negatively correlated with motility and estradiol positively correlated with survival rate.
13 citations
,
June 2018 in “Current Urology Reports” This review suggests that while finasteride for male pattern hair loss was previously considered safe, there is now evidence associating 5-α reductase inhibitors with significant sexual and reproductive side effects.
January 1999 in “Current Problems in Pediatrics” Swimming in Lake Malawi can lead to schistosomiasis, hepatitis B vaccine might cause temporary hair loss, and certain drinks affect kidney stone risk.
62 citations
,
April 2004 in “Expert Opinion on Pharmacotherapy” This article reviews the use of finasteride for treating male pattern hair loss, highlighting its mechanism of action in reducing DHT and noting its safety profile with some common adverse effects.
1 citations
,
November 2016 in “Journal of the Dermatology Nurses’ Association” This article reviews the mechanism, use, and alternatives for finasteride in dermatology and provides no new clinical results.
1 citations
,
January 2004 in “Expert Opinion on Pharmacotherapy” This paper reviews finasteride's role and efficacy in treating male pattern hair loss, finding significant improvements in hair growth and density with a favorable safety profile, though some side effects were noted.
January 2013 in “Hair transplant forum international” This review discusses current medical therapies available for treating hair loss and emphasizes the importance of understanding these options, but it presents no new results.
Finasteride helps treat male hair loss but may lower sex drive.
October 2010 in “Journal of Men's Health” Larger prostate size in older men may be linked to poorer semen quality and fertility issues.
This dissertation found that finasteride reduced prostate volume by 6.3% and total serum PSA by 10.51% in young patients over one year.
38 citations
,
December 2010 in “Fertility and Sterility” In this case report, a male patient's semen parameters improved after discontinuing a 1-mg dose of finasteride, suggesting that stopping the medication may benefit infertile men with previous sperm production issues.
11 citations
,
March 2010 in “International Journal of Andrology” This article reviews multiple entries on the Androlog blog regarding finasteride use, concluding that a 1-mg dose does not adversely affect spermatogenesis or pose a risk during conception or pregnancy.
2 citations
,
January 2011 in “Yearbook of Urology” Stopping finasteride can improve sperm count in infertile men.
125 citations
,
January 1999 in “Drugs” This study found that oral finasteride 1 mg/day promotes hair growth and prevents further hair loss in a significant proportion of men with male pattern hair loss over two years.
72 citations
,
October 1998 in “Baillière's clinical endocrinology and metabolism” This article discusses the potential effects of exogenous testosterone, highlighting that its impact on prostate cancer progression, cardiovascular health, and behavior remains uncertain and needs further investigation.
68 citations
,
February 2019 in “Urology” Hormonal treatment in transgender women reduces semen quality, but stopping treatment may improve it.
August 2015 in “Dermatologica Sinica” This study found that young adult men with moderate to severe AGA have poorer semen quality compared to those with normal to mild AGA.
13 citations
,
January 2019 in “Endocrine journal” This study found that transdermal DHT treatment increased penile length in boys with 5α-reductase type 2 deficiency, but post-pubertal growth was limited and carried potential prostate complications.
October 2006 in “Aging Health” This study found that dutasteride significantly reduces the risk of acute urinary retention and surgical intervention in men with benign prostatic enlargement compared to placebo.
April 2012 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Early hair loss in men could be a sign of non-cancerous prostate enlargement, and treating hair loss early might help prevent prostate issues later.
March 2012 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Hair loss can be an early sign of prostate enlargement.
15 citations
,
December 2006 in “Clinical interventions in aging” This analysis of the Prostate Cancer Prevention Trial found that finasteride reduces prostate cancer risk by nearly 25% and enhances the PSA test's ability to detect prostate cancer and high-risk diseases.
1054 citations
,
February 1998 in “The New England Journal of Medicine” In this study, men with benign prostatic hyperplasia who took finasteride for four years experienced reduced urinary symptoms, fewer surgeries, less acute urinary retention, increased urinary flow rates, and decreased prostate volume.
1040 citations
,
October 1992 in “The New England Journal of Medicine” In this study, 5 mg of finasteride per day significantly improved urinary symptoms and reduced prostate volume in men with benign prostatic hyperplasia, but increased the risk of sexual dysfunction.
January 2025 in “Indian Journal of Animal Research” This study observed that herbal feed supplementation in Frieswal breeding bulls improved semen volume and motility, while significantly lowering dihydrotestosterone levels, suggesting a potential mechanism for enhancing semen quality.
23 citations
,
July 1993 in “Pharmacotherapy” Finasteride treats enlarged prostate and baldness, but may cause limited urinary improvement and sex-related side effects.
195 citations
,
February 2007 in “The Journal of Clinical Endocrinology and Metabolism” In this study, administering 5alpha-reductase inhibitors reduced dihydrotestosterone levels and was associated with mild, reversible decreases in semen parameters in healthy men.
2 citations
,
October 2000 in “The Journal of Urology” Finasteride daily doesn't affect sperm production or semen in young men.
52 citations
,
February 2006 in “Current pharmaceutical design” This review discusses the use of 5α-reductase inhibitors in treating benign prostatic hyperplasia, highlighting their long-term effectiveness and benefits when combined with α1-adrenergic antagonists; it reports no new clinical results.