The best time to remove the IUD is 3-7 days after the menstrual period is cleaned, because the endometrium is relatively thin during this period, and the removal of the IUD will cause less damage to the endometrium. Therefore, the line to remove the birth control ring, usually choose to clean menstruation 3-7 days. However, for abnormal uterine bleeding, which is caused by the displacement of the IUD, the IUD can be removed at any time. Before removing the IUD, a routine examination of the leukorrhea should be performed. If there is vaginal inflammation, it is recommended to actively treat the vaginal inflammation before removing the IUD. If the IUD is removed in the presence of inflammation, it is easy to cause retrograde infection of inflammation, resulting in endometritis, salpingitis, or even pelvic inflammatory disease. Women should be given anti-inflammatory and hemostatic drugs orally after IUD removal, pay attention to keeping the vulva clean and hygienic, and take good contraceptive measures.