宫内放置节育环是一种放置一次避孕多年、手术简便、对生理干扰较少的避孕方法,深受广大妇女的欢迎。但由于放置节育环后引起月经过多的原因不明,致使部分妇女非常苦恼,严重者不得不被迫取环。影响了计划生育工作的开展。 Intrauterine placement of IUD is a contraceptive placed for many years, the operation is simple, less physical disturbance of contraceptive methods, welcomed by the majority of women. However, due to the unknown cause of excessive menstruation after the placement of the birth control ring, some women were very distressed. In severe cases, they had to be forced to take the ring. Affected the development of family planning work.