There is a type of foot called diabetic foot. Diabetic foot (DF) is one of the serious complications of diabetes mellitus, which is caused by peripheral neuropathy and peripheral vascular disease combined with excessive mechanical stress. Diabetic foot ulcer (DFU) is a foot ulcer caused by multiple triggers, including ischemia and loss of sensation due to diabetic vasculopathy. In the case of diabetes-related low distal amputations, about 85% of amputations are caused by foot ulcers; 15 times as many amputations are caused by DFU as by non-diabetic patients (so many numbers, do you feel dizzy? In fact, just one word: take DFU very seriously). DFU can also be classified as neuropathic ulcers, ischemic ulcers and mixed ulcers according to the nature of the lesion. Treatment should be based on controlling blood glucose, blood pressure, blood lipids and anti-infection, actively improving the blood supply to the affected limb by using various anticoagulation, thrombolytic and vasodilating drugs to improve microcirculation, as well as various surgical methods, and cooperating with local drug exchange treatment to promote wound healing. Among the many methods and drugs to promote wound healing, traditional Chinese medicine ointments such as expulsion of decay and muscle growth and muscle closure have unique advantages and effects. In the process of causing foot injury, increased local pressure on the sole of the foot plays an important role. The lesioned area is often the site of concentrated pressure, and long-term abnormal stresses form ulcers. The neuropathy and foot deformity of the foot are the causes of the increased local pressure in the foot. During treatment, reducing local pressure can shorten wound healing time. And as a prevention of foot disease, wearing shoes that can reduce pressure can reduce local damage. As each person’s weight, walking posture and foot joint structure are different, the measures to reduce pressure will be different. A personalized design shall be made for the patient using a pressure testing system, and diabetic foot patients are advised to choose the right shoes under the advice of their doctors. Diabetic foot ulcers have a long course, are prone to recurrence and have a high amputation rate. Diabetic patients with dry and cracked skin, edema, darkening of skin tone, loss of sensation, toenail deformation or localized redness, swelling, pain and heat indicate possible foot lesions and should be treated as soon as possible.