随着现代医学诊断技术的不断提高，许多先天性、遗传性疾病的发现日益增多，至今已达千余种，其中以先天性甲状腺功能低下症（简称甲低）最为常见。甲低是由于先天性甲状腺发育异常或代谢障碍使体内甲状腺激素不足，从而影响了小儿生长发育尤其是大脑发育，最终导致小儿智... With the continuous improvement of modern medical diagnostic techniques, the discovery of many congenital and hereditary diseases is increasing day by day, reaching more than a thousand kinds, of which congenital hypothyroidism (hypothyroidism) is the most common. A hypothyroidism is due to congenital thyroid dysplasia or metabolic disorders so that lack of thyroid hormone in the body, thus affecting the growth and development of children, especially brain development, and ultimately lead to pediatric intellectual ...