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正常妊娠时,宫腔为受孕过程提供着良好的环境,其子宫内膜形态学、生物化学改变和子宫液生化成分起着不容忽视的作用.因此,凡能改变宫腔内环境,即内膜形态或子宫液生化成分者均可干扰生殖生理过程.各型宫内节育器均按此原则发挥作用,但不同类型宫内节育器(IUD)的作用机制不尽相同,置入 IUD后内膜组织的生化改变和子宫液成分的生化改变也不
Normal pregnancy, the uterus for the conception process provides a good environment, the endometrial morphology, biochemical changes and uterine fluid biochemical composition plays a role that can not be ignored. Therefore, who can change the uterine environment, that is, the endometrium Morphological or uterine fluid biochemical components may interfere with reproductive physiology.Each type of IUD play a role in this principle, but different types of intrauterine device (IUD) mechanism of action is not the same, after the insertion of IUD intima Biochemical changes in the organization and uterine fluid composition of the biochemical changes are not