The carotid artery is a large blood vessel in the body that connects the heart to the brain and is one of the main blood supply vessels to the brain. Due to its special bifurcation structure and hemodynamics, the bifurcation of the common carotid artery and the beginning of the internal carotid artery are often prone to the formation of lipid deposits, which attach to the inner wall of the vessel and accumulate thicker and thicker, forming plaques over time, thus causing carotid stenosis. Carotid artery stenosis is a relatively common cerebrovascular disease, which can lead to cerebral ischemia, cerebral infarction and other serious consequences, with high morbidity and disability rates, and even life-threatening in particularly serious cases. Therefore, if you have carotid artery stenosis, you need timely treatment. For mild carotid artery stenosis, conservative medical treatment is recommended, with strict medication, a good diet, and regular review. However, carotid stenting is only to sort out the plaque under fluoroscopy and squeeze the atherosclerotic plaque to one side so as to expand the lumen of the blood vessel, although it can also achieve the purpose of blood flow reconstruction, but the chance of restenosis after surgery is relatively high in this way, and the plaque may fall off during surgery and cause cerebral infarction. There may be foreign body reaction after surgery, and there is also a risk of intra-stent thrombosis and stent collapse and fracture, etc. In addition, long-term medication control is required after surgery, which has certain problems and risks. In contrast, a more successful and ideal procedure is carotid endarterectomy. Some patients ask, “What are the risks of carotid endarterectomy? Carotid endarterectomy is a standard procedure recognized by the national and international medical community for the treatment of carotid artery stenosis and prevention of cerebral infarction, and the technique is very mature and safe, basically without much risk. Carotid endarterectomy is performed under a microscope, which is to clean up the plaque under direct vision, peel off and remove the atherosclerotic plaque that causes carotid stenosis, eliminate the source of emboli, restore the normal size of the carotid lumen, restore blood flow, greatly reduce the risk of cerebral infarction, and have good results. The chance of restenosis after surgery is low, and long-term medication is not required.