Carotid ultrasound can evaluate and diagnose the condition of the blood vessels in the neck and determine whether there are symptoms such as abnormal blood flow and blockage of the inner wall of the blood vessels. Arterial ultrasound is a relatively common clinical examination. Generally, the test can determine the condition of the walls of the arteries in the neck and the flow of blood in the arteries, so as to find out whether there are symptoms such as narrowing of blood vessels and arterial occlusion, as well as to find out whether there are problems such as vascular plaques. You need to keep quiet and do not move during the examination. If carotid artery intima-media thickening or carotid artery stenosis, carotid artery aneurysm and other diseases are found after the examination, timely medical examination and treatment are required to avoid the impact on the later physical recovery.