Pain in the vagina during intercourse is most likely due to inflammation of the vaginal mucosa. When there is inflammation of the vaginal mucosa, there is localized congestion and mild edema of the mucosa. This congestion and edema may be aggravated by friction during intercourse, so pain may occur, and in severe cases, the mucosa may be broken, so there may be clinical bleeding. If there is pain in the lower abdomen during intercourse, it is often caused by chronic inflammation of the pelvis. When there is chronic inflammation of the pelvis, it can lead to adhesions in the pelvic tissues and affect the local elasticity. So when you have sex, the local pain will be caused by the stimulation of sexual life. In addition, if there is endometriosis or tumors in the abdominal cavity, it can also cause pain after intercourse.