The carotid artery is responsible for one-third of the brain’s blood supply, and the danger of carotid artery problems can be imagined. Carotid artery stenosis is a disease caused by carotid plaque. If carotid stenosis is not effectively controlled at an early stage, it can lead to a series of serious problems. Generally speaking, the degree of carotid artery stenosis is gradually increasing, if the stenosis is below 50%, it is usually called mild stenosis, at this time, patients actively improve the diet on the one hand, on the other hand, take conservative medical treatment to stabilize the condition, and go to the hospital for regular review; when the degree of stenosis is between 50% and 70%, it belongs to moderate stenosis; moderate stenosis can be divided into unilateral stenosis and bilateral stenosis, some patients often Some patients often ask, “Is moderate stenosis on both sides of the carotid artery serious? At this time, most patients have obvious symptoms of cerebral ischemia and recurrent cerebral infarction, so moderate stenosis should not be taken lightly, and active hospital treatment is an important means to effectively prevent more dangerous occurrences. If moderate stenosis is not treated in time, the chance of severe stenosis is very high. In severe stenosis, the stenosis rate is often above 70%, and the risk of ischemic stroke at this time is incalculable, and the situation is critical. Whether the stenosis is moderate or severe, early surgical treatment is recommended. Stent intervention and carotid endarterectomy are two surgical procedures for the treatment of carotid stenosis, but after continuous clinical practice, stent intervention has various disadvantages, compared with carotid endarterectomy, which has a more excellent effect.