Nail cancer is high risk after 55 years old, mainly because of the gradual decline of body immunity, aging of organs and rapid progress of disease. Thyroid cancer refers to thyroid cancer, which is a kind of malignant tumor of head and neck. With the increase of age, the body resistance gradually decreases, the organs will gradually age, and the function of identifying and removing tumor cells gradually decreases, and the thyroid cancer will easily spread to the lymph nodes and distant metastasis, so it belongs to the high-risk factors. It is suggested that patients should actively cooperate with doctors to take treatment as early as possible to control the disease and delay its development. In daily life, patients should also pay attention to maintaining good dietary and living habits, and keep a good mindset to avoid aggravating the condition.