Carotid atherosclerotic plaque 9mmx2mm alone is not dangerous, but if it is combined with other underlying diseases such as hyperlipidemia, or if the plaque is unstable, there is a risk of stroke, which is more dangerous. If simply found carotid atherosclerotic plaque 9mmx2mm no great risk, only need to need regular review can, according to the degree of carotid artery stenosis to choose whether to take drugs. However, carotid atherosclerotic plaque 9mmx2mm, if the plaque is not stable, or the combination of hyperlipidemia, coronary heart disease, recently occurred ischemic stroke, there will be plaque dislodgement, blockage of blood vessels in the brain, causing cerebral infarction, and other risks, at this time the need for lipid-lowering drugs to regulate the lipid stabilization of the plaque, such as statin, beta and other medications for treatment. The appearance of carotid atherosclerosis plaque, need to be evaluated by a professional doctor, improve lifestyle habits, and actively take medication.