The time to wear the IUD includes the following points: 1, 3-7 days after menstruation without intercourse; 2, can be placed immediately after abortion; 3, after medical abortion, to be placed after 2-3 normal menstruation; 4, 42 days after natural birth, the dew is drained and the uterus returns to normal size can be placed; 5, six months after cesarean section can be placed; 6, breastfeeding IUD need to first exclude the possibility of pregnancy. IUD is a more commonly used form of contraception, some patients may experience lower abdominal swelling and discomfort, a small amount of vaginal bleeding after the IUD, the symptoms are generally mild, you can take oral hemostatic and anti-inflammatory drugs. If the symptoms are severe and the bleeding is heavy, you need to seek medical attention. Don’t do heavy physical activities within one week after wearing the ring, forbid sex within 2 weeks, forbid bathing, and review regularly.