Painful pressure on the left side of the neck artery is caused by local vascular lesions. The common lesions are mainly the following: a. Local aneurysm, which is an aneurysm-like change formed by the outward expansion of blood vessels. Local pressure will cause greater local vascular tension and cause pain, and patients are advised to perform surgical removal of aneurysm or arterial stent implantation as soon as possible to avoid serious complications caused by aneurysm rupture. Second, occlusion of the left carotid artery can cause local tissue ischemia and hypoxia, resulting in obvious painful compression symptoms. The severity of arterial occlusion can be clarified by carotid angiography, and if necessary, artificial vessel replacement can be performed to restore the smooth flow of arterial blood and relieve the painful symptoms of local pressure.