Laparoscopic surgery is recommended. At one time, more than 10 years ago, mature cystic teratoma was considered a contraindication to laparoscopic surgery. The main concern was that the contents of the tumor (hair, bone fragments, and grease) would spread into the abdominal cavity and be irritating, causing chemical peritonitis, leading to severe abdominal pain in the patient, or later formation of intestinal adhesions. However, with increased awareness, teratomas are now considered to be best suited for laparoscopy. If the contents of the tumor can be cleaned out during surgery and the abdominal cavity flushed with more saline, the aforementioned situation will not occur. Since the contents of teratoma are hair, bone fragments and grease, they can get all over the abdominal cavity if care is not taken during surgery, especially if they enter the intestinal space, which can be difficult to clean. However, if some details are paid attention to during the surgery, such as when the tumor is found to rupture during culling or to be removed after complete culling, the patient is quickly put in a head-high and foot-low position (while most of the time the head is low and foot-high in laparoscopic surgery), and the surgical bed has such a function. In this way, the tumor contents, if spilled, are between the uterus and the bladder, or between the uterus and the rectum, and do not go between the layers of the small intestine, and are easily cleaned. Teratomas can be removed either openly or laparoscopically. This is because, compared to other ovarian cysts (such as ovarian chocolate cysts), mature cystic teratomas are more clearly layered and easier to peel.