In the early stage of thyroid cancer, there is usually no sore throat. The symptoms of thyroid cancer are not obvious in the early stage, and most of the patients will consult the doctor only when they touch the thyroid gland and find lumps, while some of the patients will be diagnosed with thyroid cancer only after examination when they find that they have difficulty in swallowing, hoarseness, and the symptoms that the thyroid gland is enlarged and the nodules can not be slid, and the tissues around them may be adhered to each other. In the early stage of thyroid cancer, there is usually no sore throat. However, in the advanced stage of thyroid cancer, due to the large size of the tumor, the blood vessels, trachea and nerves will be compressed for a long time and sore throat will occur, which will threaten the human life. After diagnosis of thyroid cancer, it should be treated in time to avoid delaying the disease.