Vaginal bleeding will occur in the first six months after the placement of the Mannorrhea Ring, especially in the first 2-3 months, which is a normal reaction. There are two ways of treatment: 1) oral hemostatic drugs and oral antibiotics to prevent infection, commonly used hemostatic drugs such as tranexamic acid and commonly used antibiotics such as metronidazole; 2) oral short-acting contraceptives, commonly used contraceptives such as Ursine, which can be taken orally for 2-3 consecutive courses and most of them can be transitioned to the normal stage. Manuel belongs to the intrauterine birth control system, but the difference with the ordinary birth control ring is that it contains highly effective progestin. It works by slowly releasing 25 μg of levonorgestrel daily to treat abnormal uterine bleeding.