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The contraceptive efficacy and local effects of bioceramic IUD in rat were studied. The experiment was divided into four groups: bioceramic IUD group; stainless steel IUD group; operation control group; normal control group. All IUD samples were put into uterus of rats. The experimental results show that the alumina bioceramic has a strong contraceptive effect for those rats. In bioceramic IUD group the endometrial inflammation reaction was as mild as that in stainless IUD group during the early days (30 days ) and gradually abated with time during the late days (60 days ). The experiments show that the alumina bioceramic has a good biocompatibility and contraceptive effects and hint at the alumina bioceramic IUD may become a more safety reproduction family planning IUD.