Carotid artery stenosis is a disease in which the walls of the large arteries in the neck become narrowed, commonly seen in middle-aged patients, often combined with hypertension, coronary artery disease and diabetes, if suspected of carotid artery stenosis in addition to headache, dizziness, and other symptoms, you can also initially choose to carotid ultrasound as a screening method, which not only shows the size and shape of the carotid artery plaque and the degree of vascular stenosis, but also can be performed to analyze the blood flow, which can be It can effectively diagnose and evaluate carotid artery disease, and is non-invasive, safe and repeatable. It is recommended that people at high risk for carotid artery stenosis have regular carotid ultrasound examinations to rule out the disease, and if they find they have carotid artery stenosis, they should go to the hospital for active treatment.