Pain on the left side of the abdomen during intercourse is related to physical factors, the main reasons are as follows: first, it may be that the process of intercourse is too strong, stimulating the body and painful reactions; second, it may be caused by vulvar lacerations during intercourse, or vulvar inflammation and disease reactions, if the inflammatory reaction is more intense, it will directly affect normal sex life, and also lead to painful situations The third, there may be other diseases, such as gynecological diseases, pelvic inflammatory disease, cervical tumors or genital malformations and other diseases, can lead to abdominal pain after intercourse, according to the physical condition to symptomatic treatment, abdominal pain may also be triggered by other systemic diseases, it is best to go to the hospital in a timely manner for examination, to avoid the situation is serious, always pay attention to observe the physical symptoms.