Mendelian Randomization Studies of Testosterone Exposure: A Systematic Review
April 2025
in “
Steroids
”
TLDR Testosterone's health effects are complex and not definitively understood.
This systematic review of 30 Mendelian randomization studies explores the effects of testosterone exposure on male health outcomes, revealing conflicting associations. Higher testosterone levels are linked to increased risks of cardiovascular issues like thromboembolism and ischemic heart disease, as well as prostate cancer and chronic kidney disease. However, results vary across studies, with some not consistently replicating these associations. The review emphasizes the potential adverse effects of testosterone therapy or steroid misuse and notes limitations such as study variability and lack of standardized bias assessment. It also highlights research gaps in areas like neuropsychiatric and dermatological health outcomes.