Whether a thyroid tumor in an 80-year-old man is important or not needs to be decided according to the severity of the disease and the patient’s physical condition. If the patient’s thyroid tumor belongs to malignant tumor, i.e. thyroid cancer, the severity is related to the specific pathological type, with papillary and follicular carcinoma having a better prognosis, and undifferentiated carcinoma having the worst prognosis. If the patient’s thyroid tumor is benign and has no obvious symptoms, it usually does not matter. If the patient’s physique is relatively good and can tolerate surgery, he/she can be treated by surgery. If the patient’s physical condition is poor and cannot tolerate surgery, the tumor may further aggravate, affecting life and life expectancy. 80 year olds with goiter are advised to visit regular hospitals and be treated under doctor’s guidance to avoid aggravation of the condition.