Bilateral carotid atherosclerosis mainly refers to the thickening and hardening of the walls of bilateral carotid arteries, loss of elasticity of the vessels, narrowing of the lumen, and plaque formation, all of which are signs of bilateral carotid atherosclerosis. Carotid ultrasound can be checked to assess the degree of atherosclerosis. Cerebrovascular diseases are caused by atherosclerosis, and bilateral carotid arteries can be divided into internal and external carotid arteries, and the internal carotid artery enters the skull, mainly supplying the first 2/3 of the brain’s blood circulation, so bilateral carotid artery sclerosis, consider the patient’s cerebral atherosclerosis is also more serious, for bilateral carotid artery sclerosis and hypertension, hyperlipidemia, hyperglycemia, high homocysteine, as well as poor lifestyle, high salt diet are all related. There is a relationship. If bilateral carotid atherosclerosis is detected, patients are advised to have a low-salt and low-fat diet, quit smoking and limit alcohol, and regularly monitor the risk factors of cerebrovascular atherosclerosis such as blood lipids, blood glucose, serum and homocysteine.