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Can't help but ask this question; Since prostate cancer is so dependent upon testosterone, Would a lifelong eunuch (for whatever reason) be immune from ever getting prostate cancer? Silly question I know, but since this is one of the treatments for this cancer (usually by drug) one has got to wonder if a lifelong deficiency of testosterone would prevent the disease from ever developing. Jon.
Jon, PCa is also generally a disease for old age, when testosterone levels drop naturally, but it does occur in younger men. Similarly, PCa has been reported in men with low testosterone, but I'm not sure that any man can have zero testosterone, whether chemically or physically castrated. There is a genetic aspect to this, too. Would a man with a genetic proclivity to PCa who has been castrated nevertheless be at risk of PCa? Who knows!
It seems very unlikely that there is any research available (dearth of eunuchs) to provide a definitive answer to your "silly question" so better to bin it, don't you think?
O.C. I think you are right, this question should be forgotten. Should a lifelong absence of testosterone have even the slightest effect on preventing this disease, our "ever so wise" society might view castration at birth as justified as it does circumcision at birth as a disease prevention procedure! (That kind of thinking would have saved me the inconvenience of a worn out thumb joint had my thumb been amputated at birth also.) Jon.