碘缺乏是地甲肿及有关疾病发病的决定性环境因素,这一点已确立无疑,现已将这一系列病理过程统称为碘缺乏障碍(IDD)。补碘后可明显降低地甲肿的发病,根除地克病和其它不明显的神经和发育异常。然而,一些流行病学和实验结果表明,同时接触其 Iodine deficiency is a determining environmental factor for the development of guts and related diseases, which have now been identified as a series of pathological processes collectively referred to as iodine deficiency disorders (IDD). After iodine can significantly reduce the incidence of gland swelling, eradication of Dick’s disease and other obvious neurological and developmental abnormalities. However, some epidemiological and experimental results show that they are exposed simultaneously