Got a prostate exam by primary doc (for frequent urination), he asked while doing it if it hurt, i did have a dull pain, he said he doesn't think i have prostate issue. how accurate is his analysis?

Rectal exams: Massage of the prostate by a finger in the anus is never comfortable and often creates significant discomfort. This may be interpreted as pain by the person being examined, but may not necessarily represent disease. The experienced examiner can usually tell what is meaningful and what is a normal reaction to the insult. Without knowing your pcp i cannot really comment on how accurate they are.