Just ran across this about PSA test. I have no personal opinion on it. I found it interesting though.

https://www.youtube.com/watch?v=2qL0OWZY0CM

Talks about the inventor of the test and his opinion.

My doctor doesn't do it as a routine test. He has no problem if any of his patients requests it and will prescribe it for them. Or he may prescribe it if there is a family history of cancer. But just as a general screening test, he does not prescribe it. He is a fairly young doctor, runs a family type clinic and from my interaction with him tends to keep up on recent research. I'm not saying he is right or wrong, just that it is what he does based on my conversation with him about the subject.

The video he links to at the end of the one above.  https://www.youtube.com/watch?v=un06wQRuyZI