For diabetic patients with the presence of diabetic foot disease, if the disease has progressed to an advanced stage and has not required standardized treatment, the time frame for how long it takes to cause death varies from person to person. If the patient has a serious complication of infection and the entire foot has become gangrenous and necrotic, it is possible that the patient will die in 1-2 weeks, or at most possibly a few months. This is because in this case the patient already has an obvious infection, and it is the presence of an infection, especially an anaerobic bacterial infection, that causes gangrene and necrosis of the foot. Without standard treatment and amputation in such cases, the infection will inevitably spread throughout the body to form systemic sepsis. At this stage, the whole life of the patient will be in great danger, and even if timely treatment is given, the results will be very poor and death will come very quickly. In order to avoid this situation, diabetic patients with diabetic foot complications must be treated promptly and regularly.