获得性甲状腺功能减退往往发生于３岁以上儿童，最常见的原因是自身免疫性甲状腺炎，而在１岁以下婴儿非常罕见，临床表现通常复杂化，现报道１例。 病例男孩，１０个月，系第１胎第１产。父母无血缘关系，无甲状腺或其他内分泌疾病及免疫功能减退的家族史。新生儿甲状腺功能筛 Acquired hypothyroidism often occurs in children over 3 years of age, the most common cause of autoimmune thyroiditis, infants under the age of 1 are very rare, the clinical manifestations are often complicated, is reported in 1 case. Case boy, 10 months, the first child of the first production line. No family history of blood relationship, absence of thyroid or other endocrine disorders and immunodeficiency. Neonatal thyroid function screen