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放置宫内节育环(简称放环)是女方广泛应用的避孕措施之一。由于节育环能改变宫腔环境,阻碍受精卵的着床和发育,因此能达到避孕的目的。由于放环具有避孕效果确实,有效期长(一次可达4～10年),便于X光透视检查,手术简便安全,副作用较少,取环后仍可照常生育,不影响生产劳动和家庭生活等优点。因此深受广大妇女的欢迎。有时放环的个别妇女可能出现脱环现象,一般来说,脱环往往发生在放环后的三个月内,脱环时多自有觉察,可发现环已脱落;有的也可无特殊感觉;也有少数因不规
IUD placement (referred to as release ring) is one of the widely used contraceptive measures by the woman. As the birth control ring can change the uterine environment, hinder the implantation and development of fertilized eggs, so as to achieve the purpose of contraception. Because the release ring has a contraceptive effect is indeed valid for a long time (up to 4 to 10 years), easy X-ray examination, the surgery is simple and safe, less side effects, still can take the ring after birth, does not affect the production of labor and family life advantage. So by the majority of women welcome. Sometimes put the ring of the individual women may appear de-loop phenomenon, in general, the de-loop often occurs within three months after the release ring, when the ring more aware of their own, can be found ring has shed; some may be no special Feeling; there are a few due to irregularities