The reasons for women’s tummy discomfort after sex are: i. Cervical congestion and pelvic hyperemia due to too rough movements during sex for a longer period of time. Second, when women have endometrial inflammation, pelvic inflammatory disease, due to sexual life will cause inflammation. Thirdly, it is related to the presence of ovarian cysts and luteal cysts that have been twisted in women. If a woman has a small stomach discomfort can be appropriate rest, drink more boiled water, about half an hour may be relieved, after treatment of small belly pain is more obvious, never able to relieve, need to go to the hospital to do gynecological ultrasound and physical examination, in order to prevent the presence of ovarian cysts or luteal cysts torsion, rupture and endanger the safety of patients.