If you think you have symptoms of an enlarged prostate, the first thing you should do is to get the diagnosis confirmed by your doctor.
Either before or after a diagnosis is made, you should seek your doctor’s opinion if you experience any of the following symptoms:
Pain on urination.
Blood in your urine. Although an enlarged prostate can sometimes be the cause of blood in the urine, other (more serious) causes should be ruled out urgently
Stop passing water completely.