How long most medullary thyroid cancer patients can live depends on the patient’s early or late disease, the body’s own repair ability and whether the patient’s treatment is timely, etc.: First, if the medullary cancer patient’s disease is early and has not caused metastasis to the whole body organs and surrounding lymph nodes, and the patient’s own repair ability is strong, then the patient has undergone surgery to remove the tumor as early as possible and combined with chemotherapy and radiotherapy after surgery. In this case, most of the patients can survive for 10-20 years; secondly, if the medullary carcinoma patients are late and have metastasis to the organs of the whole body, and the patients’ own repair ability is poor, and they do not undergo corresponding treatment as early as possible, in this case, the survival cycle of the patients is usually about 3-6 months.