Difficulty urinating in men is, in most cases, prostate related, caused by prostate enlargement or prostatitis. So if a man is having difficulty urinating, he is often evaluated for dysuria, most commonly with a urine flow rate test. If this test does not meet the requirements, to test the bladder, urinary difficulty factors, such as dyspareunia and dysuria, related to bladder factors or obstruction factors, urodynamic testing is required. Urodynamic testing can accurately determine whether the difficulty in urination is due to bladder weakness or due to prostate obstruction. If it is obstruction, it needs to be treated as obstruction; if it is bladder weakness, it needs to be treated as weakness. If the patient is young and it is caused by prostatitis, the prostatitis needs to be treated effectively. If it is caused by inflammation, treat the inflammation. If you want to judge prostatitis, you need to carry out prostate fluid testing to clarify whether there are bacteria, white blood cells, and infections. Therefore, patients who have difficulty urinating must undergo prostatitis tumor screening, i.e., PSA test to rule out tumors, and then treat the cause of difficulty urinating.