6 citations
,
February 2014 in “Human & experimental toxicology” Testosterone injections can cause skin darkening and thickening.
12 citations
,
January 2020 in “touchREVIEWS in Endocrinology” Testosterone may both worsen and protect against COVID-19 effects in men.
5 citations
,
October 2013 in “Endocrine” Blood tests can detect ovarian Leydig cell tumors when scans don't, and surgery can confirm and treat these tumors.
April 2014 in “The FASEB Journal” Testosterone reduces knee movement, while flutamide and finasteride increase it.
66 citations
,
October 1984 in “Annual Review of Microbiology” Toxic Shock Syndrome cases increased due to new factors, but decreased with public health measures and changes in tampon use.
10 citations
,
May 2009 in “Cases Journal” A woman's masculine symptoms were caused by an ovarian tumor, which improved after surgery.
8 citations
,
January 1986 in “Journal of hepatology” Men with liver cancer have higher levels of a specific testosterone byproduct in their liver and blood, despite overall lower male hormone levels.
January 2005 in “Journal of Investigative Medicine” Testosterone therapy improves strength and body composition in older men with low testosterone.
10 citations
,
August 1990 in “Journal of Steroid Biochemistry” High doses of cyclosporine A increase testosterone conversion, possibly boosting hair growth.
August 2012 in “Open Repository and Bibliography (University of Liège)” A castrated dog developed hair loss and prostate issues from long-term exposure to estrogen cream.
2 citations
,
May 2018 in “Diagnosis” A 68-year-old woman developed male traits due to a tumor in her ovary, which was removed, returning her hormone levels to normal.
December 2023 in “International journal of molecular sciences” Chromosomal differences affect how muscle cells respond to testosterone.
8 citations
,
February 2009 in “Current Women's Health Reviews” Testosterone treatment can improve sexual function and bone density in women but may have adverse effects and requires more research on safety and guidelines.
23 citations
,
September 2021 in “Frontiers in Cellular and Infection Microbiology” Testosterone's effects on COVID-19 are unclear and need more research.
1 citations
,
October 2025 in “EBioMedicine”
110 citations
,
October 2013 in “The Journal of Sexual Medicine” Testosterone treatment in trans men increases body and facial hair and may lead to hair loss over time, but severe skin issues are rare.
The new testosterone detection kit is accurate, cost-effective, and useful for diagnosing diseases.
November 2022 in “Journal of the Endocrine Society” Taking biotin can lead to incorrect low results in free testosterone tests.
10 citations
,
October 2012 in “Andrology” Prostate cancer can progress even with low testosterone due to internal hormone production in the tumor.
48 citations
,
July 1996 in “Human & Experimental Toxicology” Human enzymes can detoxify harmful substances but might also increase their cancer risk.
2 citations
,
August 2023 in “Journal of Endocrinological Investigation” Excess maternal androgens can cause heart problems in offspring.
October 2025 in “Journal of the Endocrine Society” Leydig cell tumors in the ovary can cause high testosterone and male traits in postmenopausal women but are treatable with surgery.
November 2014 in “Elsevier eBooks” Gene mutations can cause problems in male genital development.
46 citations
,
December 1992 in “The Journal of Steroid Biochemistry and Molecular Biology” Affected males are born with ambiguous genitalia, raised as females, but develop male traits at puberty due to enzyme deficiency.
43 citations
,
February 1999 in “Biochemical Journal” Overexpression of SSAT in mice causes hair loss, liver damage, and sensitivity to polyamine analogues.
71 citations
,
June 2008 in “Annals of Internal Medicine” Excessive selenium from supplements can be harmful.
71 citations
,
August 2019 in “The journal of sexual medicine” Testosterone treatment effectively causes male physical development in transgender male adolescents but may lead to side effects like acne, higher BMI and blood pressure, lower good cholesterol, and decreased bone density.
4 citations
,
March 2019 in “JAT. Journal of applied toxicology/Journal of applied toxicology” PFOS exposure disrupts hormone levels and enzyme activities in juvenile frogs, affecting males and females differently.
18 citations
,
June 2016 in “PeerJ” Testosterone increases certain kidney protein levels, potentially raising blood pressure.
January 2026 in “Brazilian Journal of Development” Early diagnosis and surgery can improve symptoms of ovarian hyperthecosis in postmenopausal women.