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甲状腺功能减低症(简称甲低)是由于甲状腺不能产生必须量的甲状腺素所引起的疾病。甲低可分为先天性和后天性两类。先天性甲低是由于胎生期的各种原因引起甲状腺激素缺陷,在胎儿出生后发病。后天性甲低是由于慢性甲状腺炎等原因使甲状腺功能受损害而发病。此文重点讨论先天性甲低。一、先天性甲低的临床表现由于胎儿期甲状腺激素缺陷程度不同,出现症状的时期也不同。激素缺陷程度严重者,出生后即显示症状。婴儿出生后可表现后囟大于0.5cm、体重过重(常大于3.5kg)、哺
Hypothyroidism (hypothyroidism) is due to the thyroid can not produce the necessary amount of thyroid hormone caused by the disease. A low can be divided into two types of congenital and acquired. Congenital hypothyroidism is due to various causes of fetal life-threatening thyroid hormone deficiency, the incidence of the fetus after birth. Acquired hypothyroidism is due to chronic thyroiditis and other causes of thyroid function damage and disease. This article focuses on congenital hypothyroidism. First, the clinical manifestations of congenital hypothyroidism Due to different levels of fetal thyroid hormone deficiency, the symptoms of the period is also different. Hormone deficiencies in severe cases, after the onset of symptoms. After the birth of the baby may be more than 0.5cm after the skull, overweight (often greater than 3.5kg), feeding