The swelling of the abdomen after intercourse is due to excessive male force, and may also be due to gynecological inflammation in women. The pain in the abdomen does not occur after intercourse, the pain in the abdomen after intercourse may be due to the intense stimulation of the vagina, abdominal cavity and pelvic organs of women by men, the pain in the abdomen does not show up during intercourse, but will manifest after intercourse. Men should be careful to move gently when having intercourse and not to use too much force. The pain in the abdomen after intercourse may also be a gynecological infection in women, such as vaginitis, endometritis, cervicitis, the pain in the abdomen after intercourse to go to the hospital in time for examination to exclude the possibility of gynecological inflammation in women. In daily life, we should pay attention to physiological hygiene, both sides should change underwear diligently and bathe more often to avoid cross-infection.