Thyroid tumors are common tumors in the head and neck region, which are more common in women, most of them are benign tumors, and a few of them are malignant tumors. Generally speaking, benign thyroid tumor patients often have no obvious symptoms, the lumps are round or oval in shape, varying in size, with good viability, no adhesion with surrounding tissues, moving up and down with swallowing, smooth surface of the lumps, clear boundary, individual large lumps can compress the trachea, make the trachea and esophagus shift, sometimes due to bleeding inside the lumps, the tumor will suddenly increase in size and be accompanied by local distension and pain. Patients with malignant thyroid tumor often have no obvious symptoms, especially in early stage when most of the patients are found unintentionally by physical examination. The lumps are generally hard, irregular, with non-smooth border and poor viability, and some of the patients are accompanied by cervical lymph node metastasis or lung metastasis. If the lumps invade the adjacent tissues and organs, hoarseness, dyspnea, dysphagia, and other clinical symptoms may appear.