先天性甲功低下发病率是1/500O;跟家族性和甲状腺肿性甲功低下相比更常为散发性和表现甲状腺机能缺失。新生几普查法, 在诊断出生后甲功低下方面迄今一直是成功的,但是如果能对子宫内甲功低下作出诊断就能在出生时或者从理论上讲也能在子宫内 The incidence of congenital hypothyroidism is 1 / 500O; compared with familial and goiter hypothyroidism is more often sporadic and the performance of hypothyroidism. The newborn census has so far been successful in diagnosing hypothyroidism after birth, but at birth or theoretically in the uterus if diagnosed with low intrauterine function