Diabetic foot disease is one of the more serious chronic complications of diabetes that are costly to treat and can lead to amputation and death in severe cases. Diabetic foot disease is defined as infection, ulceration, or tissue destruction of the foot, usually associated with lower extremity neuropathy and/or peripheral arterial disease, in patients with a first diagnosis of diabetes mellitus or a history of diabetes mellitus. Diabetic foot disease emphasizes “prevention over cure”. Diabetic foot disease is difficult to treat, but prevention is more effective. People with diabetic feet need to check their feet daily, especially between the toes; wash their feet regularly and dry them with a dry cloth, especially between the toes; and wash their feet in water at the right temperature, less than 37℃. Diabetic foot patients should consult a medical professional for consultation and treatment to avoid delay.