Married women of childbearing age do have a certain percentage of women who become pregnant after being put on the ring. The reasons are various. To prevent getting pregnant after being wound up, one is to master the indications, contraindications and time of winding up. The second is to rest for 2 to 3 days after the ring is put on, and do not do heavy work and strenuous activities for a week or two, and do not do squatting physical labor. This is because the cervix is loose in the first week after the ring and the ring is easy to fall off. The third is to prohibit sexual intercourse for two weeks and keep the genitals clean. Sexual intercourse is too strong, it will cause the uterine contraction to increase, so that the uterine cavity that has not adapted in a short time will contract and the ring position will change. Fourth, in the first three months after the upper ring, especially during the menstrual period, pay attention to observe whether the ring is discharged with menstruation. The fifth is regular inspection. Generally, check once after menstruation is clean in the first month after upper ring, and then check again after three months, and then check once every six months to monitor the condition of intrauterine contraceptive ring