When the IUD is first inserted, it is important to watch for abnormal vaginal bleeding, disruption of the menstrual cycle, and displacement of the IUD. The IUD is a type of birth control device that releases progesterone slowly and continuously for contraceptive purposes. For women who have just had the MTM ring inserted, the ring is a foreign body and the body may react to it, but if there is obvious abdominal pain, lower back pain, or increased vaginal bleeding, this is an abnormal phenomenon and requires prompt medical attention. Some women who use Mannuelle ring may have no obvious discomfort at the beginning, but as time goes by, it may cause menstrual cycle disorders, such as delayed or early menstruation, or increase in menstrual flow, etc., which also need to be examined in the hospital. A small number of women may experience displacement due to strenuous exercise, or the presence of deviation in the placement of the birth control ring, all of which require close observation. For women who have just had their Mannix IUD placed, it is recommended that they eat a diet high in protein and vitamins as well as foods high in iron, and avoid sexual intercourse for one month.