Mannuelle i.e. Levonorgestrel IUD system, after getting on Levonorgestrel IUD system there is always blood in the leukorrhea and it is advised not to have coitus. Levonorgestrel IUD system is a T-shaped, pure plastic contraceptive ring. It is a T-shaped, pure plastic contraceptive ring that provides contraception and also slowly releases medication to treat a wide range of clinical conditions. Intercourse when bleeding occurs on the levonorgestrel IUD system may lead to pelvic inflammatory disease, endometritis and other diseases, so it is not recommended. Placement of levonorgestrel IUD is not recommended for people with malignant lesions of the uterus or cervix, women who are pregnant, acute inflammation of the liver, or allergy to levonorgestrel IUD. After the IUD, you need to pay more attention to rest and avoid strenuous exercise to prevent the dislodgement of levonorgestrel IUD system. Therefore, in the clinic, after the patients on the levonorgestrel intrauterine device system appeared leukorrhea old blood phenomenon, it is recommended that the patients seek medical attention in a timely manner.