Man Yuele ring refers to the levonorgestrel intrauterine system, on the levonorgestrel intrauterine system caused by abdominal pain, vaginal bleeding, leukorrhea and other side effects generally in 3 to 6 months can disappear, some women even continue to irregular vaginal bleeding and other discomforts, so due to individual differences, can not be determined for a specific period of time. The levonorgestrel intrauterine device (IUD) is a birth control device containing levonorgestrel, which is inserted into the uterus and slowly releases the medication, thus playing a role in shrinking the lining and contraception. However, the IUD will cause aseptic inflammation of the uterine lining, so there will be abdominal pain, abnormal leukorrhea and other discomforts; at the same time, the levonorgestrel IUD will cause women to bleed irregularly in the vagina, which usually disappears in 3 to 6 months, but some women will persist. For women after the IUD, it is recommended to review the ultrasound every 3 months at first, if there is no abnormality in the ring position, it can be re-checked in half a year to 1 year, if there is a lot of vaginal bleeding, severe abdominal pain and other discomforts, it is necessary to be vigilant about the occurrence of the ring position downward, then it is recommended to go to the gynecology department of regular hospitals as early as possible to improve the ultrasound and other related examinations, to clarify the cause of the disease and then actively treated under the guidance of the doctor.