After placing the IUD, there is generally no need to do contraceptive measures, at present, placing the IUD is a higher success rate and more convenient, safer contraceptive measures. The IUD is a foreign body material, it is placed in the uterine cavity, the endometrium may react to the foreign body locally, which can play a role in interfering with the implantation, long-term stimulation of the foreign body will lead to endometrial damage and chronic inflammation, thus playing a contraceptive effect. In addition, the IUD has a certain service life, you need to communicate with your doctor to clarify how long its service life is, and be careful to use it within the shelf life. Regular rechecks should be conducted when using IUDs to clarify whether the IUD is still in a specific position, so as to avoid increasing the risk of unwanted pregnancy due to the dislocation or displacement of the IUD.