The Mannorrhea ring is usually placed around the third day of menstruation, that is, when the menstrual blood is reduced but not cleared, which can reduce irregular vaginal bleeding after the ring is placed. It can reduce irregular vaginal bleeding after the IUD is placed. It can maintain the contraceptive effect for about 5 years with a single placement. Also known as the Manned IUD, the Manned IUD is the only topical pharmaceutical contraceptive method available. The IUD releases a small amount of progesterone into the uterine cavity to maintain the intrauterine environment and the endometrium in a state unsuitable for conception. It has a therapeutic effect on female patients with excessive menstruation, dysmenorrhea, and endometriosis. For women who plan to have an IUD, sexual intercourse should be prohibited 3 days before the operation, and after placement, they should pay attention to rest, avoid bathing for 2 weeks, prohibit sexual intercourse and avoid exertion; meanwhile, the diet should be light and avoid stimulating food. After 1 month after IUD placement, women should have ultrasound to check the ring in the uterine cavity after menstruation, and the position of the ring should also be reviewed regularly in the future.