本文分析了４７例确诊的自身免疫性甲状腺炎。本病起病缓慢、隐匿，常伴有甲状腺肿大或是结节。临床表现主要有三种类型：（１）甲状腺结节；（２）甲状腺机能亢进；（３）甲状腺机能减退。４７例测ＴＧ，４２例≥１：２５６００，４例１：１００～６４００，１例阴性。ＴＧ低滴度和阴性以及误诊为甲状腺腺瘤者均经病理证实为本病。作者对本病的诊断、临床表现和治疗进行了讨论，认为本病确诊后应给予甲状腺激素代替治疗，以防发生甲状腺机能减退。 This article analyzes 47 cases of diagnosed autoimmune thyroiditis. The disease onset is slow, hidden, often accompanied by goiter or nodules. There are three main clinical manifestations: (1) thyroid nodules; (2) hyperthyroidism; (3) hypothyroidism. 47 cases measured TG, 42 cases ≥ 1: 25600, 4 cases 1: 100 ~ 6400, 1 case negative. TG low titers and negative and misdiagnosed as thyroid adenoma were pathologically confirmed as the disease. The author of the diagnosis of the disease, clinical presentation and treatment were discussed, that the diagnosis of the disease should be given thyroid hormone replacement therapy to prevent hypothyroidism.