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Testosterone and Prostate Facts and Myths

By Patrick Arnold


The prevailing wisdom among a lot of individuals is that testosterone has the potential to be very harmful to the prostate.  It is thought that the more testosterone you have, or that you take, the larger the prostate will get.  It is also thought that high testosterone increases the risk of prostatic hypertrophy and prostate cancer.

In an article that just came out in The Journal of Sexual Medicine some experts in endocrinology and urology debate and address these issues as well as some others.  This is some of what they concluded.

    • Testosterone definitely stimulates the growth of the prostate, however it takes very little testosterone to stimulate the prostate to its maximal growth.   Increasing testosterone levels (with testosterone therapy for instance) beyond this will not result in further significant prostate growth.
    • There is no conclusive evidence that testosterone therapy will increase the risk of prostate cancer or even benign prostatic hypertrophy (BPH)
  • There is no evidence that testosterone therapy will convert undetectable prostate cancer to clinically detectable prostate cancer
  • Although there is very limited experience with prescribing testosterone therapy to cancer free men who had been previously treated for prostate cancer,  such treatment may still be cautiously considered.


Obviously these conclusions depart substantially from most of what you hear in the mainstream medical media – and that is despite the fact that the actual published evidence over the last few decades has supported these conclusions.  Sometimes false beliefs are hard to let go of, especially when they seem so intuitively sensible.;jsessionid=95C244FBF72B6F9F0349138C8A98ECCE.d


One Response so far

If high testosterone were the cause of prostate cancer, it would be a young man’s disease. But it’s a disease that doesn’t hit men until middle age or later – when test levels are dropping. Frankly, I wouldn’t be at all surprised to find that high estrogen levels actually play a part in prostate cancer.