Diabetic foot, a serious complication of diabetes, is the result of a combination of lower limb vasculopathy, neuropathy and infection. Patients often experience numbness, pain, ulcers and even gangrene of the foot, which is a general term for foot pain and gangrene of the extremity caused by a combination of diabetic factors, with an amputation rate of up to 40% in severe cases. Then how to treat diabetic foot? Interventional treatment of diabetic foot, this method is currently a relatively advanced treatment method, the effect is very good. Interventional treatment of diabetic foot: In fact, most patients with diabetic foot have significant occlusive sclerotic lesions of the lower extremity arteries, and for these people, interventional treatment of diabetic foot can preserve the limb. In addition, because of the wide range of diabetic foot vascular lesions, which mostly involve several arteries bilaterally and are staged, surgical procedures are difficult to deal with the larger lesions, while interventional treatment can cope with them. Interventional treatment of the diabetic foot is used. The main tools are: for patients with segmental stenosis of the lower extremity vessels, balloon catheters are used to dilate the vessels; for severe stenosis, stents are used to keep the vessels open. Before and after interventional treatment, combined with symptomatic supportive treatment such as blood sugar control, anti-infection, anticoagulation, improvement of microcirculation and local drug exchange, diabetic foot ulcers heal faster, greatly reducing the disability rate of patients, and the recent efficacy is satisfactory. Studies have shown that lower limb vascular interventions such as small balloon dilation or stent placement, together with autologous stem cell transplantation, are more effective and can save more patients with diabetic foot from amputation. Interventional treatment of diabetic foot is very effective, but there are strict indications. The conditions that can be considered for interventional treatment of diabetic foot are: diabetic lower extremity vasculopathy with severe insufficiency of blood supply, ischemia, intermittent claudication, ulcer necrosis, no improvement by conservative treatment; lower extremity angiography femoral artery, anterior tibial artery, posterior tibial artery and other medium arteries with plaque formation, stenosis or even occlusion, etc. can be considered for interventional treatment.