Indications for thyroid surgery: 1, benign disease such as more than 4cm, the tumor has caused pressure on the surrounding tissues recommended to do surgery, according to the specific patient, such as older, there is a real risk of surgery, and then consider not to operate. However, if there is no contraindication to surgery, more than 4cm, surgery is recommended; 2. If the nodule is considered malignant possibility, suspected of calcification, abnormal lymph nodes, fast growth, or unclear boundary, it should be considered comprehensively, and if there are also dangerous indications and tumor possibility, surgery is also recommended; 3. The goiter behind the sternum, that is, causing compression symptoms behind the sternum, also needs surgery; 4. If it is hyperthyroidism, there are now drugs or iodine- 131 treatment, but if the drug treatment is not effective, or if there is recurrent relapse after treatment, or if the patient himself consumes this drug which inhibits liver function and bone marrow, surgery is also recommended. 5. Other less common parathyroid diseases, such as special diseases that are themselves primary or secondary hyperparathyroidism, may also require surgery after medical examination.