What gynecologic diseases should be considered in the presence of abdominal pain: tubal pregnancy (ectopic pregnancy); miscarriage; acute tubal and acute pelvic inflammatory disease, rupture of the corpus luteum, and torsion of ovarian cysts. Identification must exclude some other medical and surgical diseases such as acute appendicitis, acute enteritis, etc. What is ovarian cyst torsion? It is a common gynecologic emergency abdominal disease, which occurs when the tumor has a long, moderately large, mobile tumor with the center of gravity on one side, such as ovarian teratoma, which is common in young women. The typical symptoms are sudden onset of severe pain on one side of the lower abdomen, often accompanied by nausea, vomiting and even shock. Once diagnosed, surgery should be performed as soon as possible.