how often should psa be checked
Men aged 45 â 49 should have a baseline PSA test. 1  If the PSA level is 3 ng / mL or higher, men should talk with their doctor about having a biopsy of the prostate. 2  If the PSA level is between 1 and 3 ng / mL, men should see their doctor for another PSA test every 2 - 4 years.