Sugar foot usually starts to rot from the place where the foot is more heavily stressed, such as the sole of the foot, the big toe, and the heel. The development of diabetic foot in diabetic patients indicates that the diabetic patient has developed some complications of the large blood vessels as well as the microvascular complications, and is prone to arterial blockage in the lower limbs. This condition indicates that the patient’s blood circulation is relatively poor, coupled with high blood sugar, the immune system is reduced, bacteria will be easy to breed and multiply. Diabetic foot will then appear on the parts that are subject to pressure as well as more friction, with injury first, followed by infection and necrosis, and the lesions expanding and spreading. Since there is more stress on the big toe, the sole of the foot, and the heel, it is easy to develop ulcers in these areas, which start out shallow and, as the disease progresses, may become deeper and more penetrating, often with soft tissue infections as well. When a diabetic foot develops, the area can be debrided, changed, and anti-infected. Of course the main thing is to control blood sugar. If the effect of oral hypoglycemic drugs is not obvious, you can also use insulin to carry on the treatment. Diabetic foot patients must consult a doctor in time and strictly follow the doctor’s instructions.