The results showed that tumor diameter (≤1 cm), unifocal, combination with HT, low lymph node metastases rate (≤40%), the absence of postoperative lymph node metastasis, and the low level of ps-Tg (≤3.87 ng/mL) were independent factors positively correlated with the ER achievement. This evidence concerns the gene TG and metastatic malignant neoplasm in the lymph nodes.