(1)碘缺乏病是自然环境碘缺乏造成的机体碘摄入不足引起的危害人类健康特别是影响智力发育的有关疾病的总称。它包括地方性甲状腺肿、克汀病和亚克汀病、单纯性聋哑、胎儿流产、早产、死产和先天畸形等。(2)人体的碘主要依赖自然环境的供应,应当每天摄入适量的碘,在停止碘摄入时,体内储备的碘仅够维持2~3个月。人类生活环境缺碘是客观存在的,所以我们必须长期补碘。(3)缺碘通常 (1) Iodine deficiency disease is the generic term for diseases related to mental health, especially mental retardation caused by iodine deficiency caused by iodine deficiency in the natural environment. It includes endemic goiter, cretinism and cretinism, simple deafness, abortion, premature birth, stillbirth and congenital malformations. (2) The body of iodine mainly depends on the supply of natural environment, should be appropriate daily intake of iodine, in stopping the intake of iodine, the body reserves of iodine only enough to maintain 2 to 3 months. The lack of iodine in human living environment is an objective reality, so we must make long-term iodine supplements. (3) iodine deficiency usually