Although many cities have now released the mandatory requirements of contraception, but I think for women with long-term contraceptive requirements, birth control ring is still a good choice, but the placement of birth control ring is a certain number of requirements and precautions, I can now let you have a preliminary understanding of what to pay attention to before and after the placement of birth control ring? First, the placement time 1, from the 3rd day of menstruation to 7 days after the clean menstruation can be placed, 3-7 days after the clean menstruation is appropriate; 2, after abortion negative pressure suction and scraping, mid-term pregnancy induced abortion within 24 hours after the abortion, after the clearance of the uterus can be placed immediately; 3, 42 days after the birth of the nightmare has been clean, perineal wounds have healed, the uterus returned to normal placed; 4, 6 months after the cesarean section placed; 5, Manuel need to be placed after the first menstruation. Mannitra should be placed on the 3rd day of menstruation; 6. Placement after natural abortion and menstrual transition, and after two normal menstrual periods for medical abortion; 7. Placement after exclusion of early pregnancy in case of delayed menstruation or lactation amenorrhea; 8. Placement within 5 days after unprotected sexual intercourse for emergency contraception, regardless of menstrual cycle time. Second, the precautions after placement 1, rest for 3 days after the operation, 1 week avoid heavy physical labor, 2 weeks avoid sexual intercourse and tub bath, keep the vulva clean; 2, the first, 3, 6, 12 months after the operation should be followed up, after once a year until discontinued; 3, after placement may have a small amount of vaginal bleeding and lower abdominal discomfort is normal. If there is a lot of bleeding, abdominal pain, fever, abnormal leucorrhea, etc., prompt medical consultation should be made; 4. Within three months after IUD placement, during menstruation and after bowel movement, attention should be paid to whether the IUD is dislodged.