The causes of pain during sex are: first of all, the most common cause of pain during sex is the possibility of pelvic inflammatory disease, with chronic pelvic inflammatory disease being the most common, and it is necessary to pay attention to the presence of other discomforts. Secondly, it is chronic cervicitis as well as tumors of the reproductive system, and more rarely, it is caused by other systemic diseases spreading to the pelvis. Because the majority of patients with pelvic inflammatory disease will have cervical lifting pain. When having sex the penis can stimulate the cervix will appear pain discomfort, and women with pelvic inflammatory disease due to pelvic congestion, edema or pelvic fluid may also appear abdominal pain. Finally, when the stimulation will aggravate the symptoms, you need to go to the hospital in time, because chronic pelvic inflammatory disease may lead to pelvic tissue adhesions, serious fallopian tube blockage, may lead to infertility or lead to the possibility of amnionitis, which can lead to premature birth or miscarriage, so for the reproductive requirements of women need to be actively carried out related to the treatment, to avoid the occurrence of serious complications may occur.