The IUD, also known as birth control ring, mainly includes inert IUD and active IUD, etc. How long to wear it for removal needs to be analyzed according to its type and the patient’s own condition. If there are uncomfortable symptoms after wearing the IUD, such as incomplete menstruation, irregular vaginal bleeding, dysmenorrhea, infection, etc., it is necessary to go to the hospital promptly and the doctor will determine whether it is necessary to remove it. If there is no discomfort, the IUD can be removed after it expires or after the need to end contraception. I. Inert intrauterine contraceptive ring: such as the traditional metal ring, heavy weight, can be worn for 10-15 years, too long contraceptive ring may adhere to the uterus or embedded, not easy to take out. This kind of contraceptive ring can cause a variety of side effects, such as causing lumbar soreness and pain, increased menstruation, menstrual disorders and other adverse reactions, so it has been less used in the clinic. Second, the active intrauterine contraceptive ring: 1, Manuelle ring: valid for 5 years, is a kind of intrauterine ring that can locally release progestin drugs, in addition to the role of contraception, can also play the role of progestin therapy locally in the endometrium. It can be considered for patients with dysmenorrhea, mild endometrial hyperplasia and mild endometriosis. 2. Gini ring: It contains indomethacin, which has a lighter quality and usually does not cause adverse reactions such as back pain and heavy menstrual flow, and is valid for 10 years. Since the Gini ring is fixed by vaginal pins in the myometrium at the bottom of the uterus, there are few cases of Gini ring embedded in the myometrium, and it is no longer used routinely in clinical practice; 3. Copper contraceptive ring: it uses the spermicidal effect of copper ions so as to achieve the effect of efficient contraception, with a useable life of 5-7 years, and fertility can be restored to normal after the removal of the ring, so it is suitable for women who need to continue pregnancy. It is recommended that women who wear the contraceptive ring should go to the hospital for regular checkups to know whether abnormalities occur in the contraceptive ring in their bodies so as to avoid complications such as infection, which can affect women’s health.