Left carotid plaque is a common disease, usually not too serious, patients if timely treatment, will not affect the quality of life and life, but if patients do not timely treatment, may affect the survival cycle. Left common carotid artery plaque is also known as left carotid artery atherosclerosis. The cause of this disease is still unclear, mostly related to metabolic abnormalities, poor lifestyle habits, obesity, age and other factors. If the patient finds the disease in time before the cerebral infarction occurs and is actively treated, the development of the disease can usually be controlled and will not affect the quality of life and life expectancy. However, if patients do not receive regular treatment in time, complications such as cerebral infarction may occur due to the development of the disease, and in serious cases, the quality of life and life cycle may also be affected. It is recommended that patients keep a good attitude, go to the hospital in time and receive treatment as soon as possible to avoid aggravation of the condition.