Diabetic foot rot itself does not affect a patient’s life expectancy, but if left untreated, serious comorbidities such as infectious shock can lead to death within a short period of time. Infections occur in diabetic patients, and foot ulcers can occur. If detected early and treated in a timely manner, the degree of the disease is mild and can be treated with conservative treatment such as medications, and most patients turn out better and do not affect their life expectancy. If it is not detected in time and ulceration, sepsis, septicemia or septicemia has occurred, or even shock, the mortality rate is higher. Therefore, the specific survival of diabetic foot rot depends mainly on the glycemic control, underlying conditions, and whether active and timely treatment is taken, etc. It is impossible to make a generalization. Once a diabetic patient’s foot is found to be co-infected and other conditions, he or she needs to immediately go to the endocrinology or orthopedics department of a regular hospital to avoid further aggravation of the lesion, which may lead to a bad outcome.