Lower extremity atherosclerosis-occlusive disease is a disease that occurs in the elderly and is often a manifestation of systemic atherosclerosis-occlusion. The disease has a slow process, initially with numbness of the lower extremities as the main clinical manifestation, and this phase can be long, often up to 5 to 10 years in some patients. Later, with the aggravation of atherosclerosis, there will be pain in both lower limbs after walking, often after walking 500 meters to 1000 meters there will be severe pain in the lower limbs and have to rest, the pain can be relieved after rest, this symptom can be repeated, medically known as intermittent claudication, there are many elderly people think that this is a normal manifestation of old age and do not go to the hospital, which can easily delay the disease and lead to further aggravation of atherosclerosis. This can lead to further aggravation of atherosclerosis. With the development of the disease, patients with this disease can have severe pain in the lower extremities under quiet conditions, often sleepless nights, sitting with their hands on their knees, the patient is in extreme pain, if not timely consultation, can appear necrosis of the lower extremities, gangrene and lead to amputation. At the same time, patients with arteriosclerosis of the lower extremities are prone to acute lower extremity arterial embolism due to hyperplasia and calcification of the intima, the walls of the blood vessels become hard as stone, the inner diameter of the blood vessels become thinner and narrower and cause changes in hemodynamics, the plaque on the intima of the hyperplasia is easily dislodged under the impact of blood flow, and when passing through the diseased lower extremity arteries. If a patient suffering from lower limb arteriosclerosis occlusive disease suddenly appears severe pain in the lower limbs, be alert to the emergence of acute lower limb arterial embolism, which is the most critical moment for patients with arteriosclerosis occlusive disease, because once the lower limb arteries are blocked within 8 hours if the blood flow is not restored, it can cause acute necrosis of the lower limbs and amputation. Therefore, elderly people should strengthen physical exercise, control blood lipids and blood pressure, eat more fresh fruits and vegetables, and if there is pain in the lower limbs after repeated walking, which is relieved after resting, they should go to the hospital in time to see a doctor. In order to restore arterial blood flow to the lower extremities. If there is sudden and severe pain in the lower extremity, especially when the calf and toes are cold at the same time, you should come to the hospital in time, and should not be treated at home, because if this happens, you should be alert to acute arterial embolism of the lower extremity, and only timely surgery of the affected extremity can hope to be saved. Since 2004, based on the success of arterial bypass surgery with artificial blood vessels, our vascular surgery department has been introducing and absorbing the latest domestic and international treatment methods, and has carried out a number of procedures such as PTA balloon dilation for below-knee arteriosclerosis occlusive disease, out-back catheter for long segment lower limb arteriosclerosis occlusive disease, and self-expanding stent implantation for lower limb arteriosclerosis occlusive disease, all of which All of these procedures were successful, preserving the limbs for the patients, and were well received by the patients.