What causes a weak urine stream?

What causes a weak urine stream?

Jennifer Anger, M.D, M.P.H. (Assistant Professor) gives expert video advice on: Is there a connection between my prostate and urination problems?; Is it normal to feel like I have to urinate almost all the time?; Why do I sometimes feel like I can't completely finish when I urinate? and more...

A weak urinary stream is one of the early signs of a blockage the urinary tract. It can be from a scar in the urethra which we refer to as a stricture. Most commonly in men who are in their fifties, it can be due to prostate enlargement. There are other causes that can be treated such as what we call a bladder neck obstruction which is in a different location than the prostate, but actually, on top of the prostate right at the neck of the bladder. So when the stream is weak it is recommended to be evaluated. Often medical therapy can be quite effective for weak urinary stream due to the prostate being enlarged.