产后无痛性甲状腺炎，是病人在产后１～７个月内发生的甲状腺功能障碍［１］。我院于１９９５年３月～１９９８年３月收治４０例产后无痛性甲状腺炎病人，其中２３例曾在外院误诊，误诊率５７．５％。现分析总结如下。１　临床资料１．１　一般资料　年龄２１～３６岁，平均２ Postpartum painless thyroiditis is a patient with thyroid dysfunction within 1 to 7 months after delivery [1]. Our hospital in March 1995 ~ March 1998 admitted 40 cases of postpartum painless thyroiditis patients, of which 23 cases were misdiagnosed outside the hospital, misdiagnosis rate of 57.5%. The analysis is summarized as follows. 1 Clinical data 1.1 General information Age 21 to 36 years, an average of 2