The reason for the widespread use of the IUD for pregnancy preparation is that the IUD is able to prevent the sperm from bonding with the egg very well and is able to achieve a better contraceptive effect. The IUD, also known as a birth control device, is one of the better forms of contraception available and is very good at preventing a fertilized egg from implanting. It is a good choice of contraception for people who do not want to use condoms or take birth control pills for a long time. It is worth noting that not everyone is suitable for using the IUD. It is recommended to go to the hospital for a detailed physical examination before the IUD is put in place, and analyze the results and the doctor’s instructions to determine whether you meet the criteria for using the IUD to avoid other serious problems.