My PSA has been steady at 3.5 for about ten years, and this spring when I began riding 2 to 3 miles a day it went up to 3.8 and then in Oct. after I was riding 12 to 15 miles a day it went up to 4.6. The upper limit for a man my age is 4.5 so I will have it checked but the likelyhood is that it is bike related. Hope so anyway. Will keep you posted if you are interested.

Urologist I spoke with said that is a common occurance with bikers.