There is no single threshold above which you’d say it’s cancer. PSA levels will vary between people, basically depending on the size of the individual prostate

There is no single threshold above which you’d say it’s cancer. PSA levels will vary between people, basically depending on the size of the individual prostate and physical activity (they should not take your PSA when you took your cycle to go to the doctor). Which is why the best course of action is to get a series of (yearly) PSA values starting from you (mid-) forties. Such that you have established your personal baseline and can easily spot a significant uptick.