先天性甲状腺功能低下 (简称甲低 ) ,是由于新生儿甲状腺素减少而引起的疾病。由于在新生儿期缺乏特异症状 ,很容易被忽略延误治疗 ,从而造成机体不可逆损害 ,导致智力障碍。为此 ,甲低的筛查已成为当前新生儿筛查的主要项目之一。材料和方法筛查对象为 1 998年 1月～ 1 999年 Congenital hypothyroidism (referred to as hypothyroidism), is due to neonatal thyroid hormone caused by the reduction of the disease. Because of the lack of specific symptoms in the neonatal period, it is easy to overlook the delay in treatment, resulting in irreversible damage to the body, resulting in mental retardation. To this end, hypothyroidism screening has become one of the major newborn screening programs. Materials and methods of screening for January 1 999 ~ 1 999 years