The pain in the stomach after intercourse is definitely an abnormal phenomenon. In clinical terms, the causes of tummy pain after intercourse are commonly pelvic inflammatory disease, endometriosis, pelvic tumors or contraction of the uterus caused by rough movements during intercourse, resulting in uncoordinated contraction of the uterus. Then it is advisable to have a gynecological examination to rule out the possibility of the above-mentioned diseases. In addition, if the pain is caused by the contraction of the uterus due to rough movements during intercourse, it is recommended to be relatively gentle during intercourse in the future to avoid this phenomenon. It is also advisable to pay attention to hygiene before and after sexual intercourse, so as to reduce the possibility of bacterial infection in the reproductive tract.