The carotid artery is the “lifeblood of the brain” and if not protected in daily life, it is likely to cause stenosis. Carotid artery stenosis is not to be taken lightly and can lead to severe ischemic stroke and recurrent transient cerebral ischemia once it develops. In addition, there is a more serious danger, when the unstable plaque is dislodged and enters the brain with the blood flow, blocking the distal arteries and causing acute cerebral infarction, which is extremely far-reaching and patients must be alert. Generally speaking, the degree of carotid artery stenosis varies from low to high, and the higher the degree of stenosis means the more serious the disease is. When the degree of stenosis reaches 100 percent, carotid occlusion occurs. The risk of ischemic stroke and transient ischemia in carotid occlusion is difficult to assess, and the only way to effectively avoid the risk is to seek early treatment. Can I still undergo endarterectomy for carotid artery occlusion? Carotid artery occlusion cannot be treated with endarterectomy, which is a standard technique for treating carotid artery stenosis. With the help of a microscope, the procedure removes plaque, restores the normal size of the lumen, restores normal blood flow, and improves cerebral ischemia. The procedure has been continuously practiced clinically and has proven to be very effective. For carotid artery occlusion, on the one hand, we need to develop good living habits and diet, control high blood pressure, high blood sugar, eat less greasy and salty food, eat more fresh fruits and vegetables, keep enough sleep and stay up less. On the one hand, according to the condition, we can consider intracranial and extracranial vascular bypass surgery.