实践证明,放置节育环是一种安全、经济、简便、有效的避孕措施,一次放入可避孕若干年,而且取出后不影响生育功能,深受育龄妇女(尤其是农村妇女)们的欢迎。节育环避孕主要是通过放入子宫腔内的节育环阻止受精卵着床而达到避孕目的,也有一定的防治宫腔粘连的治疗作用。但少数妇女在放置节育环后可出现腰酸、下腹痛或月经血增多、出血时间延长 Practice has proved that placing birth control rings is a safe, economical, simple and effective contraceptive measures, once placed in contraceptive for several years, and removed without affecting reproductive function, well received by women of childbearing age, especially rural women are welcome. Birth control ring contraceptive mainly by placing the intrauterine contraceptive ring to prevent fertilized egg implantation to achieve the purpose of contraception, but also a certain degree of prevention and treatment of intrauterine adhesions. However, a few women may have backache, abdominal pain or menstrual bleeding after prolonged placement of an irrigating ring