How long a diabetic foot patient can live after treatment is mainly related to the severity of the patient’s diabetic foot. If the diabetic foot is relatively mild, such as only ulcer formation, no infection or gangrene formation, the effect of the diabetic foot treatment is better, and will not have much impact on the patient’s overall life expectancy. On the other hand, if the diabetic foot disease is very serious, and gangrene has already appeared in the localized or whole foot, and has been treated with surgery, if the surgical treatment is more effective, the patient will live for at least five years or more without any problem. If the patient has a severe infection, the result after surgical amputation is not good, and the local wound does not heal, in this case the patient is estimated to live about 1-2 years.