Vascular disease caused by diabetes is the culprit of almost all late complications of diabetes. The “diabetic foot” is one of them. When the blood vessels in the feet are blocked, there will be coldness in the legs and feet in the early stages, followed by intermittent foot pain. Once the wound appears, it is easy to infect and difficult to heal, the tissue blackened, necrosis, the formation of diabetic foot, commonly known as “old rotten feet”. The 78-year-old Chen old uncle, suffering from diabetes for more than a decade, two years ago, the soles of the feet after grinding, appearing rotten feet, moved to four or five hospitals, treatment for several years, the foot under the red date ulcers never heal, the pain is unbearable. At present, most of the diabetic foot patients do not know that the treatment of diabetic foot requires specialized treatment of vascular surgery, only when the blood vessels are open, the foot pain can be relieved and the rotten foot can be healed. When a diabetic foot occurs, does it end in amputation? According to statistics, 25% of diabetic patients have foot problems, and 5%-15% of these patients end up needing amputation. If you can intervene at an early stage, the onset of the disease can be delayed, preferably by receiving treatment before the foot rots, you can avoid the fate of a rotten foot amputation. Diabetic patients do not develop foot lesions at the beginning, but due to poor blood sugar control and insufficient blood supply after prolonged vascular lesions. When the lesion occurs in the foot there will be some symptoms, early on it will feel cold skin on the leg, soreness and numbness, followed by intermittent claudication, which is a severe pain in the lower limbs after walking for a while, but can be relieved by itself after sitting down to rest. Many patients with these symptoms often say, “My leg hurts when I walk for a while, but it eases up when I sit down and rub it. Eventually, the pain in the leg even when it is quiet is called “resting pain”. ”The pain in the foot already indicates that the blood vessels are severely narrowed and must be treated with vascular intervention, until ulcers appear, which is actually late.” Once an ulcer occurs, the blocked blood vessels are of course not supplied with blood, and the ulcerated wound is difficult to heal. Although some important blood vessels can be unblocked through surgery to heal some difficult ulcers, this is the last thing doctors want to see, so patients are expected to be treated at an early stage. The distance of “intermittent claudication” is often used to evaluate the severity of diabetic foot disease. When a patient can walk more than 200 meters without pain, he or she can be treated with vasodilators. When walking less than 200 meters is unbearable, vasodilators and antiplatelet drugs alone cannot stop the progression of the disease, in this case, vascular examination and treatment are required. The only way to improve blood circulation in diabetic patients is to control blood sugar, blood pressure and blood lipids consistently over a long period of time. Early treatment is needed when intermittent claudication occurs.