1.什么是地方性甲状腺肿病? 地方性甲状腺肿病(简称地甲病)是由于自然环境中(包括水、土、粮、菜等)缺少人类生命活动所必需的微量元素——碘,从而造成病区内部分居民甲状腺肿大的一种世界性常见地方病。因此,医学上也把这种地方病归类于生物地球化学性疾病。群众通常把它叫作“粗脖根”、“大粗脖”、“大脖子病”、“气瘰”、 1. What is endemic goiter? Endemic goiter (hereinafter referred to as toke disease) is due to the natural environment (including water, soil, food, vegetables, etc.) lack of trace elements necessary for human life activities - iodine, As a result, a common endemic disease of the goiter of some residents in the ward is caused worldwide. Therefore, this endemic disease is also medically classified as a biogeochemical disease. The masses usually call it “rough neck root”, “big neck”, “big neck disease”, “qi”