Mannix Ring refers to the levonorgestrel intrauterine system, which may not affect the leukorrhea, or it may cause bloody leukorrhea. 1. Will not affect the leukorrhea: levonorgestrel intrauterine system is a method of contraception, but also able to treat idiopathic menorrhagia, most patients use this intrauterine system after the levonorgestrel intrauterine system, will not affect the leukorrhea, is still normal leukorrhea. 2. bloody leukorrhea: a small number of women using levonorgestrel IUD system, menstrual pattern will change, 22% of women show prolonged bleeding time 67% of women show irregular bleeding, some will have a small amount of bleeding, bloody leukorrhea. The reaction to the use of levonorgestrel IUD varies from person to person, and it is recommended to consult a doctor if any abnormalities occur.