How long a carotid plaque patient can live depends mainly on whether the plaque causes severe stenosis, occlusion or dislodgment infarction. If the plaque is small and stable and does not fall off, it usually does not affect the patient’s natural life expectancy; if the plaque causes severe stenosis, occlusion, or falls off and causes blockage, acute cerebral infarction will occur and jeopardize life. If the degree of carotid artery stenosis reaches 70%, or reaches 50% but has symptoms of headache, dizziness, and limb weakness, it indicates that it has caused insufficient cerebral blood supply, and further development may lead to cerebral vascular occlusion, causing cerebral infarction. Some patients’ plaques contain more inflammatory lipid substances or calcification, which are unstable plaques, and then it is easy to cause plaque dislodgement, and once the blockage occurs, the patient may be in danger within a few days if treatment cannot be carried out in time. On the contrary, if the plaque is small, tends to be stable, does not cause insufficient blood supply to the brain, does not cause blood vessel blockage, then generally will not affect the patient, will not affect the patient’s normal survival time. The common causes of carotid plaque are increasing age, high blood pressure, high blood sugar, high blood fat, smoking, obesity, etc. Early carotid plaque can have no obvious symptoms, mostly found in the physical examination, carotid artery serious stenosis can appear dizziness, headache, memory loss and other symptoms. Carotid artery plaque patients should pay attention to low-fat and low-salt diet, appropriate exercise, and consult the doctor in time when discomfort occurs.