Arteriosclerotic obliterans is a systemic disease that can occur in large and medium arteries throughout the body, but is most commonly seen in the distal abdominal aorta and iliofemoral-popliteal arteries. In the later stages of the disease, it can affect the main arteries distal to the popliteal artery. Due to arterial lumen narrowing or occlusion, chronic ischemia of the lower extremity arteries occurs. This condition is more common in men and typically occurs in individuals over the age of . With the increasing elderly population in China, the incidence of this disease is on the rise. Initially, patients may experience coldness, numbness, soreness in the limbs, and intermittent claudication. In later stages, ulcers or gangrene in the limbs may appear. Large-scale gangrene indicates severe conditions with rapid progression, difficult treatment, and potential for amputation or even threat to life. Traditional Chinese medicine categorizes this under "Pulse Blockage" and similar concepts.