碘缺乏病,是由于自然环境中(包括水、土、粮、菜等)缺少碘,从而造成的一类疾病群的统称,包括甲状腺肿大、克汀病等。世界上现有100多个国家和地区深受碘缺乏病的危害。主要分布在拉丁美洲、非洲、亚洲和大洋洲大部分发展中国家,约有10亿人生活在缺碘地区,其中4亿多在中国。这一问题,受到国际普遍关注。 Iodine deficiency disease is a general term for a group of diseases caused by the lack of iodine in the natural environment (including water, soil, food, vegetables, etc.), including goiter, cretinism and so on. More than 100 countries and regions in the world are endangered by iodine deficiency disorders. Mainly in most developing countries in Latin America, Africa, Asia and Oceania, about 1 billion people live in areas lacking iodine, of which 400 million are in China. This issue has drawn widespread international attention.