If the IUD causes obvious clinical symptoms or reaches the prescribed age, it is recommended to remove it. 1. Causing obvious clinical symptoms: after placing the IUD, women may experience clinical symptoms such as lumbago, prolonged menstruation, increased menstrual flow and dysmenorrhea; if the clinical symptoms are obvious and affect the normal life of women, it is recommended to remove the IUD. 2. Contraceptive ring to the specified age: the contraceptive ring has a specified period of placement, usually 5 to 8 years, if the contraceptive ring to the specified period of time, it is not recommended to continue to be placed in the uterine cavity, it should be removed as soon as possible, so as not to cause unnecessary trouble. After placing the IUD, women should pay attention to the regular review of ultrasound to observe whether there are obvious clinical symptoms and whether the IUD is in a normal position. If it causes obvious clinical symptoms or reaches the specified age, it is recommended to remove it as soon as possible. Women should also pay attention to regular gynecological examinations to detect problems at any time and deal with them at any time.