If you have intercourse before the IUD does not affect the IUD, leukorrhea routine, blood routine, gynecological examination are normal, you can get an IUD, at this time, the IUD on the IUD before intercourse also plays a role in contraception, so the IUD will not have an impact on the IUD. In addition, it is suggested that the IUD can be put on 3-7 days after the menstrual period is clean, and do not do heavy labor for a week after the IUD is put on, so as not to cause the position of the IUD to change. After a month of resumption of menstruation, menstruation is completely clean, you can do ultrasound to understand the position of the birth control ring, the first menstruation is likely to be a little more menstrual flow, do not be nervous. It is recommended to check the position of the IUD every year.