July 2012 in “The Journal of Urology” Testosterone increases muscle mass regardless of DHT conversion blocking.
54 citations
,
September 2013 in “Fertility and Sterility” Finasteride can reduce fertility in some men, but stopping it increases sperm count.
16 citations
,
January 1998 in “Dermatology” Androgens may worsen a natural hair resting phase, possibly leading to hair loss.
5 citations
,
May 2020 in “Diagnostics” Lower zinc levels may predict less effective hair loss treatment.
35 citations
,
March 2014 in “British Journal of Dermatology” Hair loss in male pattern baldness involves muscle degeneration and increased scalp fat.
37 citations
,
January 1991 in “Reproductive Toxicology” Finasteride reduces male rat fertility by causing issues with copulatory plug formation.
2 citations
,
August 2011 in “Revista Medica De Chile” A postmenopausal woman's high testosterone levels and symptoms improved after removing a tumor from her ovary.
January 2026 in “Andrology” PRP injections are safe but don't significantly improve Peyronie's Disease.
6 citations
,
February 2014 in “Human & experimental toxicology” Testosterone injections can cause skin darkening and thickening.
5 citations
,
July 2005 in “British journal of dermatology/British journal of dermatology, Supplement” A man grew hair on his penis, which is not common, and needed surgery to remove it.
1 citations
,
August 2002 in “Zeitschrift für Hautkrankheiten” Male androgenetic alopecia involves hair follicle miniaturization due to DHT, with potential treatments using inhibitors and blockers.
2 citations
,
October 2015 in “The New England Journal of Medicine” The woman's surgery lowered her testosterone and improved scalp hair loss but did not change her excessive body hair.
122 citations
,
July 1990 in “Teratology” Finasteride exposure in pregnancy causes genital abnormalities in male rats.
March 2023 in “Archives of Physical Medicine and Rehabilitation” Testosterone plus finasteride increases bone density in men with spinal cord injuries.
March 2009 in “The Journal of Urology” Low dose finasteride causes only minor changes in PSA levels in men over 50 with BPH.
Botulinum toxin injections do not help with male pattern baldness.
6 citations
,
April 2019 in “Endocrinology and Metabolism Clinics of North America” Testosterone therapy for transmasculine individuals is generally safe with medical supervision, improves mental health, and has mixed effects on physical health.
4 citations
,
February 2009 in “Obstetrical & Gynecological Survey” Testosterone patches can modestly improve sexual function in postmenopausal women not on estrogen therapy.
February 2025 in “Skin Appendage Disorders” Adrenal tumors can cause hair loss and high testosterone in women.
7 citations
,
January 2017 in “Indian Journal of Dermatology, Venereology and Leprology”
February 2012 in “Reactions Weekly” A woman got male pattern baldness from touching her husband's testosterone gel.
59 citations
,
September 1994 in “The Journal of Clinical Endocrinology and Metabolism” Finasteride reduces scalp DHT levels, potentially treating male pattern baldness.
August 2024 in “The Journal of Urology” The 2024 guideline updates recommendations for genetic testing, imaging, and sperm retrieval in male infertility.
28 citations
,
January 2009 in “Cellular & Molecular Biology Letters” DHT deficiency increases iNOS expression in rat testis and epididymis.
44 citations
,
January 2012 in “Food and chemical toxicology” Ursolic acid can shrink the prostate and lower a hormone linked to prostate growth in rats.
September 2023 in “Clinical, Cosmetic and Investigational Dermatology” Higher SHBG levels are linked to less severe hair loss in women, but vitamin D levels don't seem to affect hair loss.
Early baldness and little chest hair may indicate higher prostate cancer risk.
30 citations
,
August 1984 in “Journal of the American Academy of Dermatology” Low-sulfur hair syndrome can cause UVB sensitivity and testicular failure.
May 2023 in “IntechOpen eBooks” More research is needed to understand how testosterone is maintained in adult males.
January 2023 in “Springer eBooks” Most older adults experience pattern hair loss due to shrinking hair follicles, with men and women showing different balding patterns.