As an important blood vessel for blood supply to the human brain, the carotid artery is mainly responsible for providing sufficient blood to the brain. When atherosclerotic plaque appears, it will lead to narrowing of the blood vessel, forming carotid stenosis. The typical symptoms of carotid stenosis are different degrees of weakness in one limb or the other, partial sensory impairment, headache, dizziness, and visual impairment in one eye. Most of these symptoms are only the early symptoms of carotid stenosis. As the degree of stenosis increases, the symptoms of carotid stenosis may also gradually manifest as aphasia, hemiparesis of limbs or cerebral infarction or cerebral hemorrhage, endangering the patient’s life. How to treat dizziness caused by carotid stenosis 80%? As the main blood vessel leading from the heart to the brain and other parts of the head, the carotid artery must be treated promptly when stenosis occurs, and some stenotic lesions may even gradually develop into completely occlusive lesions. Drug treatment can only play a role in stabilizing the plaque and reducing the risk of cerebral ischemia, but it cannot fundamentally remove the plaque. Surgical treatment includes carotid stenting and carotid endarterectomy. Although carotid stenting is a minimally invasive treatment, during the operation and stenting process, the plaque may fall into the brain and form a cerebral embolism, and there is a possibility of restenosis, and long-term medication is usually required after stenting. Carotid endarterectomy is the best treatment for carotid artery stenosis, under the microscope, peel off the lesioned intima, make the inner wall of the carotid artery smooth and restore the inner diameter to normal size, effectively restore the carotid artery blood flow and prevent the occurrence of stroke, 1-2 days after the operation, the patient can resume normal life. The technique has been successfully completed for senior patients (83 years old) with outstanding efficacy, and has received many patients’ favorable treatment.