Cold and painful arms are generally treated clinically in different ways according to the specific causes of cold and pain. First, in extremely cold weather, the patient’s clothing is too thin, which can cause poor insulation of the arm, thus causing frostbite of the arm, and the symptoms of cold skin temperature and pain. At this time, patients can apply hot water bags, wear elbow pads, wear thicker and warmer clothes to reduce the symptoms of cold and pain in the arms. Second, patients with arterial occlusion of the upper extremities may lack sufficient blood supply to the arms, resulting in ischemia, hypoxia, lower skin temperature and pain symptoms. In this case, the patient can be examined by arteriography to clarify the severity of the stenosis, and if necessary, action artery balloon dilation or vascular stent implantation to expand the narrowed blood vessels in the arm to restore blood flow and reduce the symptoms of cold and pain in the arm.