Atherosclerosis is a local manifestation of systemic atherosclerosis in the limbs, which is a degenerative and proliferative change in the intima and middle layers of the arteries, resulting in thickening, stiffness, fibrillation and loss of elasticity of the arterial walls, secondary to thrombosis, causing narrowing of the arterial lumen and even obstruction, resulting in the corresponding ischemic symptoms in the limbs. The progression of the lesion gradually increases tissue ischemia, and the symptoms evolve from intermittent claudication to resting pain in the affected limb, leading to ulceration or necrosis of the limb. The disease occurs in the elderly and is particularly common in Europe and the United States. The onset of atherosclerosis is often closely related to the metabolism of blood lipids, so it is important to pay attention to the changes in blood lipids when taking herbal medicine, and any factors that can aggravate blood lipids should be avoided. Drug therapy is mainly aimed at patients with early or mid-stage atherosclerotic occlusive disease or those who cannot tolerate surgery. There is no drug that can treat atherosclerosis itself and cannot restore diseased arteries to normal vessels. The drugs used clinically are all for dilating blood vessels and improving collateral circulation; or lowering blood viscosity and improving hemodynamics; or just symptomatic treatment to relieve patients’ pain. In terms of diet, it is important to eat more nutrient-rich food and more vegetables and fruits. It is also important to increase exercise and do more activities that you can do. If you have to take anti-lipid western medicine at the same time, stagger the time to avoid the interaction between drugs.