Mannitol refers to the Levonorgestrel IUD system. You can have intercourse 2 weeks after putting on the levonorgestrel IUD system. Due to the operation of the ring will have a slight damage to the endometrial tissue, if intercourse too early, it is easy to lead to the upward movement of bacteria in the vagina and cause endometritis and other pelvic inflammatory diseases, at the same time, after the ring, the woman will usually have a small amount of vaginal bleeding, mostly lasts for about 1 week can be relieved by themselves, so generally 2 weeks after the operation can not have intercourse. For women on the levonorgestrel intrauterine device system, it is recommended that after the IUD 1 month, 3 months to review the gynecological ultrasound to observe whether the position of the ring is normal, if the ring position is normal, and then every six months to review can be. On the levonorgestrel intrauterine device system after women will appear irregular vaginal bleeding, the amount is generally relatively small, not more than the amount of ordinary menstruation, if necessary, can follow the doctor’s instructions oral Yunnan Baiyao capsules and other medicines to stop bleeding symptomatic treatment. For women on levonorgestrel intrauterine device, it is recommended that they regularly review the gynecological ultrasound, and if abdominal pain, vaginal bleeding increases and other discomfort, it is recommended that they go to the gynecology department of a regular hospital, to clarify the cause of the disease, and then under the guidance of the doctor to actively treat it.