Bleeding for over a month with the Mannix IUD is not heavy and usually does not require removal of the IUD. The Mannuelle ring is a levonorgestrel intrauterine sterilization system, which is a progestin-containing birth control ring. The hormonal instability of the body can cause the endometrium to shed a small amount of blood, resulting in irregular vaginal bleeding, which usually recovers gradually over a period of 3-6 months. The IUD not only provides contraception, but also shrinks the uterine lining, relieving the patient’s symptoms of increased menstrual flow and menstrual cramps. Some patients may experience adverse effects such as vaginal bleeding, amenorrhea or weight gain after wearing the IUD. After wearing the IUD, it is important to pay attention to personal hygiene and clean the vulva every day to avoid cross-infections. If there is excessive bleeding or prolonged vaginal bleeding when wearing Mannuelle ring. It is recommended that patients go to the hospital for timely examination and standardized treatment.