The carotid artery is an important blood pipeline, and no problem should occur, otherwise it will directly affect the blood flow to the brain. In recent years, cerebrovascular diseases such as carotid stenosis and carotid occlusion have become very common, seriously affecting health conditions and making people anxious. It is important to understand that the carotid artery is one of the fundamentals of blood flow to the brain, and a stenosis or even occlusion can be very dangerous. Carotid artery occlusion can be life-threatening Will carotid artery occlusion affect the patient’s life expectancy and does it require surgery? Carotid artery occlusion is a very serious problem, if not actively treated and controlled, cerebral infarction, cerebral hemorrhage and other problems may follow, and life safety is in danger. Carotid endarterectomy is the gold standard for the treatment of carotid artery stenosis. For the treatment of carotid artery, the mild cases can be treated conservatively by internal medicine, and it is crucial to actively cooperate with the treatment, use reasonable medication and review regularly; for the moderately severe cases, the patients need to adopt effective surgical methods for treatment according to their condition. Carotid endarterectomy is currently the golden means to treat moderate to severe carotid stenosis and prevent cerebral infarction, a technique that originated abroad and has matured over a long period of time. Our cerebrovascular neurosurgery team is currently performing this procedure extensively. Carotid artery occlusion requires intracranial and extracranial vascular bypass treatment. Treatment of carotid artery stenosis is based on the severity of the stenosis, and symptomatic treatment is necessary for better prevention and control. However, if the carotid artery is completely occluded, the situation is even more dangerous and requires intracranial and extracranial vascular bypass surgery, such as bypassing the superficial temporal artery with the middle cerebral artery or the occipital artery with the posterior cerebral artery, to bring abundant blood flow from outside the skull into the skull and improve the blood supply to the brain.