What are the main reasons why men do not urinate?

1, cystitis

cystitis caused by inflammation may lead to bladder wall swelling and congestion, easy to normal bladder contraction and urination function interference, and then lead to urine is not enough.

2, bladder stones

bladder stones if the volume is relatively large, may cause urethral obstruction, resulting in urine discharge blocked, resulting in the above performance.

3, prostate hyperplasia

when prostate hyperplasia to a certain extent, may compress the urethra, so that urethral narrowing, thus affecting urination, resulting in patients with the above symptoms.