产后甲状腺炎(PPT)是一种在产后一年内发生的甲状腺功能障碍综合征。典型病例是以短暂的无痛性甲状腺机能亢进伴甲状腺放射性碘(RAI)吸收值降低为特征。常继发一个甲状腺机能减退期。尽管大多数患者甲状腺功能会恢复,但很多患者此后将会经历一个甲状腺机能减退2～4年的复发期。 Postpartum thyroiditis (PPT) is a thyroid dysfunction syndrome that occurs within one year after delivery. Typical cases are characterized by a transient, painless hyperthyroidism with reduced thyroid radioactive iodine (RAI) absorption. Often secondary to a hypothyroidism. Although most patients have a return of thyroid function, many will subsequently experience a relapse of 2-4 years of hypothyroidism.