Ultrasound: TIRADS 4 was 45.2%, TIRADS 5 was 32.3%; Surgical methods: Thyroid lobectomy + Waist resection was 18.8%, Proximal thyroidectomy accounted was 3.1%, Total thyroidectomy was 78.1%; The number of lymph node dissections was 8.5%; Complications in the first day after surgery were nausea and vomiting were 7.8%, temporary hoarseness was 20.3%, Tetany attack was 1.6%; Complications in 72 hours after surgery were hoarseness was 15.6% and Tetany attacks was 17.2%; Results after surgery: 65.6% patients achieved good results; 34.4% achieved average results; 0% patients achieved bad results.