Carotid artery stenosis has reached 70%, which is a moderate to severe stenosis of the carotid artery and must be taken seriously. Many people avoid surgery for fear of side effects after surgery, fear of excessive tension and fear on the operating table, and fear of the huge cost and disproportionate efficacy, so how to treat without surgery? Many patients accept the doctor’s medication, through the suppression of drugs, even if it can temporarily relieve the pain, but can not fundamentally solve the problem of carotid artery stenosis, our goal is to heal, is healthy, and too much worry will only prolong the treatment time, more in the middle of this forethought will occur unpredictable consequences, if not timely surgery, the patient will probably be due to the carotid lumen In order to avoid the recurrence of these symptoms, surgery should be considered once the carotid artery is greater than 50%, and surgery should be performed if it is greater than 70%. So how is surgery treated? The most recognized procedure is carotid endarterectomy, which has proven its maturity and advancement in nearly 1,000 clinical cases. It is known that carotid endarterectomy is performed under a microscope to ensure a low-risk operation, and after cutting the outer wall of the carotid artery, the diseased intima is peeled off and removed, so that the inner wall of the carotid artery is restored to smoothness and the lumen to its normal size. The efficiency of carotid endarterectomy has been a very trustworthy and affirmative procedure.