The causes of abdominal distension after coitus in female patients are as follows: 1, physiological factors: during coitus, the movement is more violent, stimulating the patient’s abdominal organ fascia, and can cause organ fascia congestion, bruising, which can cause abdominal distension; 2, gynecological diseases: for example, chronic pelvic inflammatory disease, adnexitis, ovarian cysts, uterine fibroids, the patient can be after coitus to produce abdominal distension. If the patient’s abdominal distension after intercourse is more intense, should also consider whether the corpus luteum rupture, or ectopic pregnancy, need to be accurately diagnosed, and timely symptomatic treatment.