There are several reasons why your belly keeps hurting after intercourse: First, the spirit of sexual life is more tense, not able to live a comfortable sex life in a relaxed state. Secondly, the action of the male partner during sex is relatively rough, causing small damage to the reproductive organs in the process of sex. Third, the presence of diseases that cause painful intercourse, such as chronic pelvic inflammatory disease, endometriosis, both of which can lead to painful intercourse or pain after intercourse, so when there is pain in the stomach after sex. If it happens often or even unbearable to go to the hospital for a detailed examination to see whether it is affected by psychological factors or caused by pathology. After the examination to determine the disease to do timely treatment, if it is psychological factors or improper cooperation in the process of sexual life caused by the future attention to regulation can be.