Carotid atherosclerosis is a non-inflammatory lesion of the carotid artery and a manifestation of systemic atherosclerosis in the carotid artery. Atherosclerosis will make the wall of the blood vessel thicken and lose elasticity, and the official lumen of the blood vessel will become narrower. It is usually caused by hypertension, diabetes, high blood fat, etc. In severe cases, it will affect the blood circulation of the brain, and if there is a thrombus passing through the sclerotic site, it may cause cerebral thrombosis and produce serious complications. Drugs for anticoagulation, activating blood circulation and lowering blood lipids should be taken in time, and the carotid plaque condition should be rechecked regularly.