To analyse the clinical features and treatment strategies of papillary thyroid carcinoma(PTC) coexistent with lymphocytic thyroiditis (LT). A total of 292 patients including 25 males and 267 females with LT and thyroid nodules treated in the department of head and neck surgery between Sep 2011 and Sep 2014 was analysed retrospectively and divided into two groups according to pathological results, of them 262 patients, with a median age of 47 years old, were LT with PTC and 30 patients, with a median age of 54 years old, were LT with benign nodules. Among 262 patients having LT with PTC, 259 were diagnosed as having malignant or suspicious malignant nodules and 3 having benign nodules with ultrasound before surgery, 98 cases were considered multifocal malignant nodules by preoperative ultrasound, and 112 cases were positive in cervical lymph nodes, including bilateral positive in 37 cases. Of 30 patients having LT with benign nodules, 14 were diagnosed malignant or suspicious malignant nodules and 16 benign no