Women or men have abdominal distension after intercourse, the reasons are as follows: a. Women: 1, physiological factors: during intercourse, the magnitude of the action is relatively large, stimulating the female abdominal organs, fascia, in addition to high local neurovascular excitability, triggering spasmodic contraction of the abdominal fascia, organs, can lead to abdominal distension; 2, gynecological diseases: such as ovarian cysts, uterine fibroids, cervical erosion, can make women appear with The abdomen is distended and painful during intercourse. Men: men with prostatitis, prostate enlargement and urinary tract infection can cause abdominal distension and pain.