If the patient has the desire to place the IUD, a series of examinations will be performed before the IUD is placed to exclude contraindications, and if the physical condition meets the requirements for the placement of the IUD, the IUD will be placed into the uterine cavity by a doctor using a special device under sterilization. Contraindications to IUD placement include inflammation of the reproductive organs, uterine malformation, serious diseases, irregular menstruation, or serious irregularity of recent menstruation.