Peripheral arterial embolism refers to the blockage of a peripheral artery by a thrombus or embolus from a certain site, which subsequently causes acute ischemia at the distal end, manifesting as acute ischemic pain and necrosis. The clinical manifestations are: 1. Pain Pain is often the earliest symptom to appear, with the buckle gradually extending to the distant. About 20% of patients first appear symptoms are numbness, and pain is not obvious. 2, skin color and skin temperature changes, the skin is waxy pale. The skin temperature of the affected limb decreases and is cold, with the distal part of the limb being the most obvious. 3, Arterial pulsation is weakened or disappeared . 4, numbness, motor impairment, stocking-type infection loss area in the distal part of the affected limb, hyperalgesia area in the proximal part, the affected limb may also have pins and needles-like sensation, weakened muscle strength, or even paralysis. The purpose of peripheral artery embolization treatment is to remove or dissolve the thrombus as soon as possible, so as to reopen the blood vessel, restore blood supply, save the ischemic tissue cells and avoid necrosis as much as possible. Whether the tissue necrosis is closely related to the early or late treatment, the limb survival rate reaches 95% for those treated within 6h of onset; 81% for those treated within 12h; 67% for those treated after 14-24h. Therefore, once diagnosed, the limb should be treated immediately.