The generic name of Mannitol is Levonorgestrel IUD System. After putting on Levonorgestrel IUD, you should pay attention to rest, avoid taking basin bath, sexual life; pay attention to observe the vaginal bleeding, whether there is any abdominal pain and so on. 1. Pay attention to rest, avoiding pelvic baths and sexual life: after putting in the levonorgestrel IUD, you need to pay more attention to rest, and sexual life and pelvic baths are not recommended for 1 month afterward. 2. Observe the vaginal bleeding, abdominal pain: on the levonorgestrel intrauterine device is invasive operation, at the same time levonorgestrel intrauterine device is also hormonal drugs ring, so in the placement of 3 months may appear abnormal vaginal bleeding, abdominal pain and lumbar pain and other uncomfortable feelings. If there is heavy vaginal bleeding, obvious discomfort, it is recommended to go to the hospital in time to improve the relevant examination, under the guidance of a professional doctor targeted treatment.