先天性甲状腺功能低下造成的后果为不可逆的，智能低下和身材矮小。如果能早期治疗愈后较好，治疗越早效果越好，故甲低的早期诊断至为重要。先天性甲低早期往往缺乏特征性临床表现，新生儿期大规模筛查是解决本病早期诊断的唯一途径。以脐带血中的垂体促甲状腺激素（ＴＳ... The consequences of congenital hypothyroidism are irreversible, with low intelligence and short stature. If the treatment of early healing better, the sooner the better the effect of treatment, so a low early diagnosis is important. Congenital hypothyroidism is often a lack of characteristic clinical manifestations, large-scale screening in neonatal period is the only way to resolve the early diagnosis of this disease. Umbilical cord blood in the thyroid-stimulating hormone (TS ...