甲状腺功能低下(简称甲低)非常常见,是甲状腺激素合成和分泌不足所致的一组疾病。成人甲低多起病隐匿,临床表现多样,又缺乏特异性,手术前常常不易发现。然而,甲低可影响多器官的功能,对手术的预后产生不良影响,甚至造成死亡。因此,在临床上应予以重视。1甲低分类和临床特点甲低 Hypothyroidism (hypothyroidism) is very common, is a group of diseases caused by the lack of thyroid hormone synthesis and secretion. A hypothyroidism onset of many adults, clinical manifestations of diverse, but also the lack of specificity, often difficult to find before surgery. However, hypothyroidism can affect the function of multiple organs, have an adverse effect on the prognosis of the operation, and even cause death. Therefore, in the clinical should pay attention. A low classification and clinical features A low