Each organ of the human body has its own role, and the carotid artery is a very critical blood supply channel, which supplies blood to the human brain all the time to ensure that the brain can function normally. However, many people have carotid artery stenosis, which obviously leads to abnormal blood supply to the brain and causes a series of complications, such as cerebral infarction and cerebral hemorrhage, which are more common. When carotid stenosis occurs, treatment cannot be slackened. Mild carotid artery stenosis can be controlled with medication to prevent the problem from becoming serious. However, if there is moderate to severe stenosis at the beginning of the carotid artery, the problem is already very serious, and medication alone is basically ineffective, so timely surgery is needed at a regular hospital. Which department should I go to for severe stenosis of the carotid artery? Carotid artery stenosis is a cerebrovascular disease and belongs to the neurosurgery department of cerebrovascular disease, but not every hospital has this department, so you need to go to the hospital for detailed consultation on which department you should register. At present, our hospital adopts the advanced technology of carotid endarterectomy to treat moderate to severe carotid artery stenosis. Carotid endarterectomy is operated under a microscope to precisely find the diseased intima and remove it, so that the inner wall of the carotid artery is smooth and the inner diameter is restored to normal size.