Does Testosterone Replacement Therapy Cause Prostate Cancer?

Many men go to their doctors believing that testosterone is a bad player in prostate cancer.

Worse, according to leading testosterone researcher Dr. Abraham Mogentaler of Harvard Medical School, these beliefs are so often upheld and added to by a medical community that appears to be unaware of the medical literature on testosterone, and its appropriate uses and benefits in both disease and health.

In this presentation at the annual meeting of the European Association of Urology (EAU) that took place on March 22, 2015, in Madrid, Spain, Dr. Morgentaler covers the origin of the controversy surrounding testosterone therapy as it relates to  cardiovascular risk and prostate cancer risk, and how these misconceptions spread through the medical community and ultimately to patients.

He presents his analysis of the two flawed studies that generated the unjustified concerns and that have distorted the public discussion of testosterone therapy as a legitimate and beneficial medical treatment.

Here, we want to simply share his introduction in that presentation as a researcher of testosterone for well over 3 decades.

In his talk at the annual European Association of Urology, Dr. Morgentaler said:

All of us [ physicians ] who were trained more than 5 years ago learned that high testosterone caused prostate cancer or contributed to it, [ and ] low testosterone was supposed to be protective.

I learned that eunuchs [ men who have been castrated for various reasons and who do not have testicles ] were supposed to never get prostate cancer – not true – and we learned that if you raised testosterone or gave testosterone to a man with an earlier history of prostate cancer that it was like pouring gasoline on a fire or feeding a hungry tumor.

There is no evidence for any of this.