Symptoms of arterial disease of the limbs, some people walk a distance will appear lower limb weakness, pain, often forced to stop and rest, stop for a period of time to continue to walk, walk about the same distance and reappear pain, this phenomenon is called intermittent claudication. This phenomenon is called intermittent claudication. In some of these patients, it is because the blood supply to the arteries of the lower limbs is reduced, and the oxygen consumption of the muscles of the lower limbs increases when walking, and when the blood supply to the arteries is reduced, the muscles of the lower limbs can only carry out anaerobic metabolism, producing many acidic metabolites that lead to leg pain. The most common ischemic disease of the lower extremities in the elderly is atherosclerosis-occlusive disease. Atherosclerosis is an age-related lesion, so the onset of this disease is age-related, occurring mostly in older adults over the age of 60. Diabetic foot can occur in patients with diabetes mellitus, where the combination of neuropathy and various degrees of peripheral vasculopathy leads to lower extremity infection, ulcer formation, and/or destruction of deep tissue. In young and middle-aged men, thrombo-occlusive vasculitis is more common, with lesions in the lower extremities and occasional upper extremity onset. In young women, multiple aortitis can occur and the lesions are usually not limited to the lower extremities. What are the common symptoms of arterial disease of the limbs? Symptoms include coldness, coldness, numbness, intermittent claudication, followed by severe pain; physical signs include pale limbs, rough skin, hair loss, thickened toe (finger) nails, and weakened or absent arterial pulsations at the extremities. Local ulcers, after a long time, the affected toes (fingers) necrosis black, and even toes (fingers) knuckles off. What are the common symptoms of venous disease of the lower extremities? Lower extremity venous disease can be seen as superficial venous tortuous dilatation, or with hyperpigmentation above and below the inner and outer ankle, or the formation of chronic ulcers. Patients with deep vein thrombosis of the lower extremity have an acute onset, mostly with unilateral limb swelling (more common on the left side), redness and heat in the affected limb, pressure pain in the calf or groin, and persistent limb swelling. Patients with deep venous valve insufficiency mostly present with single or double lower limb swelling, which is light in the morning and heavy in the evening, aggravated by prolonged walking and standing, and the swelling is reduced or disappears after resting in bed or elevating the lower limbs. Venous ultrasound can be a good identification.