Exercise therapy is one of the three main treatments for diabetes, which can control weight, reduce insulin resistance and lower blood sugar. There are various forms of exercise therapy, such as walking, running, playing ball, swimming, hiking, etc. However, the choice of exercise therapy varies from person to person, and in some cases, especially when there is a severe foot lesion (diabetic foot), the patient is not suitable for exercise therapy. The diabetic foot is one of the most common complications of diabetes. There are two types of conditions: first, feet with open lesions (ulcers, infections, gangrene); second, feet without open lesions, but with risk factors for the development of lesions, such as neuropathy and vascular lesions (often called dangerous feet). In principle, the foot with open lesions is not suitable for exercise therapy, because weight-bearing pressure can further aggravate the foot lesions. There are four main types of diabetic risk foot: neuropathic foot, vascular foot, deformed foot, and foot with a history of previous ulcers. Diabetic patients with dangerous feet can exercise, because proper exercise can also improve blood circulation in the lower limbs and feet. However, the following conditions should be noted: 1, neuropathy foot, the most common is sensory neuropathy resulting in anosognosia foot. The foot is unable to perceive various discomforts, traumas or lesions that have occurred because of sensory neuropathy, and therefore cannot provide timely care or treatment for the foot that has problems, i.e., the foot lacks protective sensation. Motor neuropathy can lead to deformity of the foot, and abnormal protrusions of the foot can be easily compressed, while vegetative neuropathy can cause swelling of the foot and discomfort in shoes. Neuropathy is the main cause of foot ulcers. Therefore, patients with neuropathy in the foot should pay special attention to the protection and care of the foot during exercise. First of all, choose the right shoes, either sports shoes or leather shoes, the size should be appropriate, especially when there is foot deformity or foot swelling, never barefoot or wear sandals sports. Before each exercise, pay attention to check whether there are foreign objects in the shoes, shoes are not damaged (can not wear shoes with damage or after repair shoes); after the exercise to carefully check whether the foot has redness or pressure marks (if there is that the shoes are not suitable), once found to have skin ulcers should be promptly to the hospital. Patients with foot deformity or foot swelling should take a walk, and should not do more strenuous exercise. 2, vascular lesions should also pay attention to the protection of the foot. Because of vascular lesions foot resistance to ulcers is reduced, and once the ulcer is difficult to heal. If the pain in the lower limbs after exercise, suggesting that the vascular lesions are more serious, then you should go to the hospital, the patient should not insist on exercise. 3.If there is an open lesion in the foot with gangrene, acute ulcer combined with infection, severe neuropathy leading to Charcot’s joint, the patient should be bedridden and cannot walk. If there is a chronic ulcer and there is no infection, appropriate exercise should only be done with the use of special shoes or insoles to ensure that the ulcer is not compressed.