The most common physiological ones are caused by male contact with the cervical opening during sex, rough male movements and vaginal dryness. Generally, rest for a day or two can slowly relieve the pain. Usually, you should pay attention to the hygiene of your private parts and be as gentle as possible during intercourse. If the lower abdomen is painful and unbearable every time you have sex and the pain lasts for more than a week after intercourse, it may be caused by pelvic inflammatory disease or chronic cervical inflammatory disease. The larger uterine fibroids and ovarian cysts may also cause pain in the lower abdomen during sexual intercourse, so you need to come to the hospital for a gynecological specialist physical examination and ultrasound to deal with the primary cause after a clear diagnosis.