Have you ever had the experience that walking is always a bit awkward, your calves are sore and painful, and you can continue to walk only after taking a break, and your feet are getting cold and numb, and recently the day has become warmer, but your feet are still getting colder and colder? If you have the above experience, then you may have lower extremity atherosclerotic occlusive disease. Many patients with lower extremity atherosclerotic occlusive disease initially have cold, numb lower extremities, at this time, if you use hot water soaking feet and other methods to make the feet warm, will often accelerate the local metabolism of the foot, aggravating ischemia, serious cases can lead to local blackening or ulceration of the affected foot. Although the weather has become warmer, however, it does not get the fundamental solution. The typical symptoms of arteriosclerosis occlusive disease are intermittent claudication, accompanied by cold limbs, low skin temperature, numbness, soreness and weakness, tingling, weakened dorsal foot artery pulsation, can be complicated by hyperlipidemia, hyperglycemia, hypertension, etc., followed by pale skin, pale yellow or purple dull, dry skin, desquamation, sweat hair loss, toe (finger) nail deformation and other nutritional disorders, severe ulcers, infection or gangrene, pain is severe In the late stage, more secondary thrombosis, rapid development of high limb extensive gangrene and life-threatening. The early symptoms of chills and numbness are easily ignored, but the most obvious symptom is “intermittent claudication”. It is characterized by pain in the lower leg after walking for a while, but can continue to walk after a few moments of rest. At first it may be painful after walking 500 meters, gradually painful after walking 400 meters or 300 meters, and finally it can develop into painful after walking 100 meters or 50 meters, stopping and walking. Many elderly people with this symptom always think that they are “old”, or treat it as a joint osteophyte and other lesions. In fact, the leg pain caused by lower limb atherosclerosis occlusion has its own characteristics: that is, the location of pain in the calf, for the calf belly muscle area pain, rest for a few minutes and then able to walk, walk to a certain distance and then produce pain, and so on and so forth. Arteriosclerosis is a common condition in the elderly, especially for those over 65 years of age, and is more likely to occur with hypertension, hyperlipidemia and diabetes. If you meet the above conditions, then you are a high-risk group for lower extremity atherosclerosis occlusion. When you experience pain and weakness in your lower leg when walking, you must consider the possibility of the disease and need to go to vascular surgery for examination. Currently, the easiest and most useful test is palpation of the posterior tibial artery and dorsalis pedis artery, which is very sensitive and specific for diagnosing atherosclerotic disease of the limbs. You can feel the artery by gently pressing your index finger on the back of the foot between the big toe and the second toe. If you find that you cannot feel the dorsalis pedis artery on one side, the skin temperature of the foot is cooler than the opposite side, and there is pain in the ipsilateral calf when you walk, you need to go to the hospital for further examination. If there is intermittent claudication and the above problems occur, you must be on high alert. If you use medication in time when you just feel cold and numb, it can be very effective. If intermittent claudication occurs, it can still be treated medically in the early stages, but in the middle and late stages, the risk of blackened and necrotic limbs as well as amputation increases significantly. Therefore, it is recommended that the elderly receive regular annual vascular specialist examinations to detect early those at risk of limb atherosclerosis and give early diagnosis and treatment to prevent paralysis and save limbs and lives.