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关于宫内节育器的作用机理,只是从六十年代以来,才进行了相当大量的工作。并广泛地看到,在所有被观察的动物和人身上,宫内节育器都有高度的抗生育作用。但迄今为止,还没有阐明其确切的作用机理。78年我们对放置节育器妇女宫腔洗液和环涂片的细胞学进行了观察,发现放置节育器妇女的宫腔洗液白细胞总数比正常妇女多。涂片中只见极少巨噬细胞,未见巨噬现象。根据这些研究和国外报导,我们推测,宫内节育器的作用主要是改变子宫环境,即某些细胞(主要是中性白细胞)崩解产物、释放因子或
Regarding the mechanism of IUD, only a considerable amount of work has been done since the 1960s. It has also been widely observed that IUDs have a high anti-fertility effect on all observed animals and humans. However, so far, its exact mechanism of action has not yet been clarified. 78 years we place the IUD women’s uterine lotion and loop smear cytology was observed and placed IUD women’s uterine cavity fluid total number of white blood cells than normal women. Smear only see very few macrophages, no macrophage phenomenon. According to these studies and foreign reports, we speculate that the role of IUD mainly to change the uterine environment, that is, some cells (mainly neutrophils) disintegration products, release factors or