IUD is suitable for patients who have contraceptive requirements and have no contraindications to IUD, the specific steps are divided into preoperative preparation and intraoperative placement of IUD. 1. Preoperative preparation: generally choose to place the IUD 3-7 days after menstruation, and need to check the blood routine and coagulation function, and exclude inflammation of the reproductive tract. Check the size and position of the uterus and adnexa; 2. The patient is placed in position, vulva, vagina, perineum, anus, upper third of thighs are sterilized, and the sheet is spread. 3. Placement of IUD: Sterilize the cervix and cervical canal after exposing the cervix with vaginal speculum, clamp the anterior lip of the cervix with cervical forceps, probe the depth of the uterine cavity with a probe along with the position of the uterus, and push the IUD into the uterine cavity with the placer. After observing that there is no bleeding, the cervical clamp and vaginal speculum can be removed. Rest for 3 days after the placement of the device, avoid heavy labor for 1 week, avoid sexual intercourse and baths for 2 weeks, and keep the vulva clean. It is recommended that women with contraceptive needs go to a regular hospital to consult a doctor and place the IUD in accordance with their actual situation, pay attention to the follow-up observation after placement, and consult a doctor in time if there is any maladaptation.