The IUD is known in clinical medicine as the intrauterine device (IUD). It is an easy-to-accept intrauterine device that is safe, effective, simple and economical, and is used as a contraceptive measure for women who have no need to get pregnant. After using the IUD, if you experience irregular vaginal bleeding for a short period of time, you need to go to the hospital for examination. The vulva and vagina will be strictly sterilized when the IUD is put in place to avoid infection. However, early sexual intercourse after the IUD is prone to infection, and the infection can be treated with antibiotics such as cephalosporins and penicillins as prescribed by the doctor to fight infection. Some women may be prone to lower back pain after placing the IUD because of their physical condition, and such symptoms need to be treated under the guidance of a professional doctor. It is recommended that patients in need of regular medical institutions and professional doctors under the guidance of standardized operation.