Pain in the belly after intercourse should be related to excessive force during intercourse, female pelvic inflammatory disease, endometriosis, and vaginitis. If the man exerts himself excessively during intercourse, the friction of the abdomen causes strong contraction of the vaginal wall, congestion and edema due to excessive excitement, and prolonged intercourse can cause strong contraction of the uterus, resulting in abdominal pain. If you have pelvic inflammatory disease or due to pelvic congestion and edema, excessive force during intercourse can cause abdominal pain. In patients with endometriosis, excessive force during intercourse can cause painful abdominal stimulation due to adhesion of the uterus to the pelvic cavity. In women with vaginitis, the vagina is too dry, congested, red and swollen, and during intercourse there are strong vaginal contractions that cause pain and abdominal discomfort. Most of the pain in the belly that excludes excessive force is caused by female diseases and should be treated by a doctor in time.