The IUD should be reviewed at the 1st month, 3rd month and the first year after the IUD is in place. The IUD is usually placed within 3-7 days after menstruation, without sexual intercourse and without reproductive tract infections. After the IUD is placed, it is necessary to do a review of the IUD at 1 month, 3 months and 1 year after placement, mainly to check whether the IUD is in the proper position in the uterine cavity, whether there is any incarceration or breakage of the IUD, and whether there is any infection, etc. The IUD should be placed within 3-7 days after menstruation. At the same time, it excludes some patients who have placed the IUD but still have a pregnancy with the IUD. If there are symptoms such as abnormal menstruation, pain in the lower abdomen or lumbosacral region after the IUD is inserted, it is necessary to consult a doctor in time to clarify the cause and then treat the problem scientifically under the guidance of the doctor.