Interrupted urination in men is usually caused by increased urethral resistance. It may be caused by physiologic sexual factors, such as urination after masturbation or sexual intercourse. It can also be caused by urethral stricture, prostate enlargement, bladder stones and other diseases. If you just masturbate or urinate after sex, the mucous membrane of the urethra is usually in a state of edema, and the resistance increases during urination, which can lead to interruption of the urine flow, but this situation can be relieved soon. Urethral stenosis, prostate hyperplasia, bladder stones, urethral stones, penile such diseases can lead to obstruction of the urethra, urethral resistance increases during urination, urination difficulties can appear the phenomenon of interruption of urine flow. There may be other reasons for men to interrupt urination, excluding physiological factors, to the hospital for examination, to identify the specific cause of the disease, and then treatment.