Vascular intermittent claudication is when a patient walks a certain distance and then has pain and weakness in the lower extremities and is unable to walk on. After a few moments of rest, however, the situation improves and the person can walk for a while again. However, when the condition worsens, the distance the patient can walk becomes shorter and shorter, and he or she feels pain and numbness earlier and earlier, and finally ends up with difficulty walking. The incidence of intermittent claudication caused by atherosclerosis is higher in Europe and the United States, where the incidence is 10% for those over 70 years old, 5% for those 60-70 years old, and about 1% to 2% for those under 60 years old. The pathogenesis: gradual atherosclerosis of the arteries of the lower extremities, resulting in luminal narrowing or occlusion, chronic or acute ischemia of the muscles of the lower extremities, so that after walking a certain distance you will feel weakness, pain and numbness in the arches of the feet and calf muscles. Insufficient blood supply and oxygen to the arteries of the lower extremities will still trigger spasm and aggravate the degree of arterial stenosis, and then the typical phenomenon of intermittent claudication will appear in the lower legs. If walking continues, the symptoms worsen and the patient is forced to stop walking. Symptoms are reduced or disappear after rest or rest, and then recur when walking again. As the condition worsens, the walking distance becomes shorter and the time needed to rest becomes longer. In addition, symptoms of claudication can occur with thromboembolic vasculitis. Risk factors for this disease include hypertension, hyperglycemia, hyperlipidemia and smoking, with smoking being the most harmful. Since the main lesion is atherosclerosis, the risk of developing intermittent claudication is increased several times and the deterioration of atherosclerosis is accelerated when a person with any of the “three highs” still smokes. There are various treatment options for intermittent claudication. For patients with early stage and limited lesions, minimally invasive arterial interventions can be used to restore blood supply to the affected limb and prevent further development of the lesion. Patients with these symptoms should be actively treated in vascular surgery. If the treatment of this disease is neglected, the condition will gradually worsen until the end of the limb becomes necrotic and ulcerated, leading to amputation or even life-threatening.