Nail cancer is what is usually called thyroid cancer. Each patient’s comprehensive situation is different, and the survival time to natural death is different, from half a year to decades. 1. If the patient’s thyroid cancer has low differentiation degree and is undifferentiated, the survival period is only about half a year or one year. Undifferentiated nail cancer is highly malignant and cannot be treated by radical surgery, but may only be treated by palliative treatment with poor effect. 2. If the patient’s thyroid cancer is highly differentiated and detected at an early stage, it can be cured by surgery as early as possible, and the survival period can be greatly prolonged. For example, after systematic treatment of papillary thyroid cancer, patients can survive for several decades, or even until natural death, until they are more than 70 or 80 years old. It is suggested that patients should have regular medical checkups to find out the hidden danger as early as possible and deal with it in time, so as to avoid delaying the condition.