PeterDisAbelard. said...
A bit of clarification might help. One of the main purposes of the prostate in a healthy male is to produce PSA. It's not an indicator, much less a cause, of prostate cancer. Making PSA is what your prostate was designed to do. But it's supposed to go in your semen and not be released in your blood stream. Semen contains huge amounts of the stuff. It acts to reduce the viscosity of mucus, in particular to allow sperm to penetrate the mucus plug that closes the cervix.
There are two things that can cause PSA to leak into your blood. One is sex. A great deal of PSA is produced and emitted into your semen and some of that "piping" leaks. The other thing that can cause it is something wrong with your prostate. Prostate cancer is the most obvious cause of PSA release into the blood, but infections, inflammation, jostling, and over growth can do it as well.
So, while PSA can indicate prostate cancer, it doesn't cause it and a release of a bit of PSA into the blood during sex is harmless. There are other things that tend to accumulate in prostate tissues -- things that cause inflammation, or foster the growth of bacteria -- and flushing them out with frequent ejaculation appears to be good for your prostate overall.
Very interesting. Never .thought if it that way.
I bet as a kid, you never thought you'd grow up to be an expert on the chemistry of semen