Pain during intercourse to consider several reasons: 1, the presence of local inflammation of the vagina, vaginal inflammation exists when the vaginal mucosa is relatively thin, during sex because of friction may be painful during intercourse, need to do a gynecological examination to clarify; 2, before coitus may be caressing a shorter period of time, the vaginal secretion of mucus less, resulting in vaginal dryness caused by the pain, so pay attention to the pre-sexual caressing is very important; 3, the pain of coitus Pain if not vaginal localized pain, manifested as abdominal pain, we should consider whether there is the existence of pelvic lesions, such as the existence of pelvic inflammatory disease, in the time of coitus often may be manifested as pelvic pain. If there is endometriosis or adenomyosis, in the time of coitus will also be manifested as pain, and often have endometriosis patients in the time of coitus will be manifested as a kind of severe coitus pain, and even many people will refuse to coitus. If you have severe pain during intercourse, you need to go to a gynecology clinic for a gynecological examination and ultrasound to determine whether endometriosis is present. The treatment of endometriosis is relatively complex and depends on the location and size of the lesion, as well as the patient’s age and fertility requirements to determine the specific treatment plan.