In life, some middle-aged and elderly people will have some bad performance such as dizziness and headache, fatigue, sleepiness and drowsiness, and slow reaction. Many people think that this is a normal phenomenon of old age, but in fact, it may also be a pathological manifestation. For example, carotid artery stenosis is a cerebrovascular disease with a high incidence in the middle-aged and elderly population, and this disease is often associated with such symptoms. Carotid artery stenosis is mainly due to atherosclerosis, which causes the blood to become sticky and lipid deposits to adhere to the vessel walls, resulting in the gradual thickening and degeneration of the carotid artery lining, which over time forms plaques that block the carotid artery lumen and affect blood flow, resulting in insufficient blood supply to the brain and causing a series of cerebral ischemic symptoms. In addition, carotid plaque may gradually calcify and ulcerate, and some unstable plaque may fall off at any time, leading to acute cerebral infarction with dangerous consequences and high disability rate, or even life threatening. Therefore, middle-aged and elderly people should pay attention to their health and seek medical treatment in time once they find relevant symptoms. Mild carotid stenosis can be treated conservatively by internal medicine, strict medication and regular review; while in case of moderate to severe carotid stenosis, surgical treatment is required depending on the situation. Carotid endarterectomy is an effective means to treat moderate to severe carotid stenosis and prevent cerebral infarction, with excellent clinical results. Some patients ask if carotid endarterectomy is minimally invasive and how much it costs. Carotid endarterectomy is an invasive treatment. Although it is not a minimally invasive procedure, it is not too invasive, requiring only a 7-8 cm incision in the neck, a microscopic incision in the carotid artery wall, peeling off and removing the diseased intimal plaque, and suturing the carotid artery lumen to achieve blood flow recanalization, and the cost is not high.