At present, the most common cause of atherosclerosis is arteriosclerosis caused by vascular diseases and atherosclerosis, which further forms lipid plaques and leads to vascular stenosis. So arteriosclerosis is a systemic disease. There are many reasons for arteriosclerosis. Hypertension, hyperlipidemia and diabetes are all risk factors for arteriosclerosis. There is also arteriosclerosis closely related to age. With the increase of age, it is often manifested as arteriosclerosis. Its important feature is that the pressure difference between systolic blood pressure and diastolic blood pressure increases, which is called the increase of pulse pressure, which is also the manifestation of arteriosclerosis. Doctors can detect arteriosclerosis and lipid plaque formation by carotid ultrasound. These are all methods to detect arteriosclerosis, and the conduction velocity of pulse wave can be used to reflect the severity of arteriosclerosis. After the occurrence of arteriosclerosis, we should try to control the risk factors just mentioned. In addition, using drugs to help soften blood vessels is conducive to preventing arteriosclerosis from getting worse.