The common cause of feeling cold calves and feet even in summer is mainly seen in patients with lower extremity arterial occlusion, which can cause lack of sufficient blood supply to the distal limbs and manifestations of ischemia and hypoxia, and the limbs can manifest as decreased skin temperature, tissue necrosis, and even gangrene-like changes in the calves and feet. At this time, patients need to improve arteriography as soon as possible to clarify the severity of the stenosis. Interventional balloon dilatation and stenting of the stenosed artery, or stenosis vascularization and artificial vessel replacement should be performed as soon as possible to restore blood flow, thus reducing the cold symptoms in the calves and feet.