According to the introduction, diabetic foot is one of the chronic complications of diabetes. Clinically, diabetic patients are affected by long-term hyperglycemia, which manifests as lower limb vascular sclerosis, vessel wall thickening, elasticity decline, blood vessels are prone to thrombosis, and set into plaque, thus causing lower limb vascular occlusion, branch end nerve damage. The “foot” is the farthest from the heart, and the occlusion is the most serious, which leads to edema, blackening, decay and necrosis. However, the seriousness of this disease is not well understood. How serious are the consequences of diabetic foot disease? Look at a set of data to understand: 85% of diabetic patients amputation caused by foot ulcers, the world average of every 30 seconds a person lost foot due to diabetes, once the line above the knee amputation, the mortality rate of 30% within 1 year. As the diabetic foot is a high rate of disability and death complications of diabetes, expert advice to diabetics: be sure to “baby” their feet, it is best to check their feet every day for any abnormalities, such as redness, swelling, ulcers, deformities, etc., once found, to go to the hospital for treatment, do not delay the best time to delay treatment.