Factors that cause carotid artery intima-media thickening are as follows: 1. Age factor, usually with the age of the carotid artery intima-media thickening, and will appear in the carotid artery elasticity, brittleness enhancement of the situation. 2, carotid artery intima-media thickening and the body’s hyperlipidemia directly positive correlation, for example, the blood cholesterol level is too high, the high level of low-density lipoprotein, will also lead to atherosclerotic carotid artery plaque formation and lead to intima-media thickening. 3. Plaque formation can lead to thickening of the carotid arteries. 3, some high blood pressure factors can also lead to thickening of the arterial intima-media. 4, some patients with high blood viscosity can also experience carotid artery intima-media thickening.