There is no way to remove the ring by hysteroscopy or ultrasound monitoring, and hospitalization and laparoscopic monitoring are required. Another part of the ring may be free to the pelvic cavity, causing implantation and also affecting other parts of the body. When the ring is not removed beyond a certain life span, it can also cause frequent abnormal bleeding and may damage the endometrium, causing endometrial inflammation and stimulating the endometrium to produce certain polyps. Therefore, when the ring exceeds a certain life must go to the hospital registered gynecology, ultrasound monitoring to take bad, to avoid there will be planted uterine cavity and bring inconvenience to the future life of the impact, before taking the ring as far as possible to choose within 2-3 days after the end of menstruation, can avoid due to take the ring after the bleeding caused by a long time.