It is often said that the carotid artery is the lifeline, and the health of the carotid artery is a matter of life and death. Why is that? Because the carotid artery is a bridge between the heart and the brain, and the blood to the brain and face is directly transported through the carotid artery, once the carotid artery stenosis problem occurs, the blood supply is blocked, the consequences are very serious. Carotid artery stenosis can be mild or severe, and a stenosis of less than 50% is considered mild carotid artery stenosis, which can be controlled by medication. If the degree of stenosis reaches 70%, then it is a severe carotid stenosis. Severe carotid artery stenosis may not be effectively controlled and improved by medication alone, which generally requires surgical intervention for better treatment. Do I need a stent for severe carotid stenosis? Many local hospitals currently use carotid stenting for the treatment of severe carotid stenosis, and although it is effective, there are many drawbacks to this method. For example, it can easily lead to dislodgement of emboli, formation of intra-stent thrombosis, and restenosis, which makes the later treatment more difficult. Therefore, a more advanced and effective technique is needed for the treatment of severe carotid stenosis, and the internationally recognized method is carotid endarterectomy. This technique can directly peel off the carotid plaque and the diseased intima, truly restore the size of the carotid lumen, reconstruct blood flow, and recover very well after surgery.