Carotid artery stenosis has now become a relatively common cerebrovascular disease, especially in the three high groups, middle-aged and elderly people. Carotid stenosis can block blood flow and affect the blood supply to the brain, even causing cerebral infarction. Clinical statistics show that about 60% or more of ischemic strokes are caused by carotid stenosis. Carotid artery stenosis is generally referred to as a narrowing of the carotid artery in the extracranial segment due to atherosclerosis. Due to the special hemodynamic characteristics, it is easy to cause the deposition of lipid impurities in the blood, causing the carotid artery intima to proliferate and degenerate, forming plaques that occupy the carotid artery lumen space, resulting in carotid stenosis. For the treatment of carotid artery stenosis, in addition to the treatment of mild stenosis with internal medicine, more serious cases require surgical treatment. Some people ask whether minimally invasive carotid surgery is risky, but by minimally invasive surgery, we probably mean carotid stenting. Carotid stenting is a minimally invasive procedure that is relatively simple to perform and very safe during surgery, and there are generally no risks. However, the key is in the postoperative period, where the probability of restenosis is relatively high, and postoperative problems such as intra-stent thrombosis, stent collapse, and foreign body reactions are also more dangerous. At present, the more ideal surgical treatment for carotid stenosis is carotid endarterectomy, which is an invasive treatment, and the technology is also very mature and very safe. It is an invasive treatment, and the technology is very mature and safe. Moreover, there is no risk of restenosis, stent collapse or foreign body reaction after surgery, and no need for long-term medication after surgery, which is a more thorough treatment.