Whether bilateral carotid atherosclerosis is serious or not cannot be generalized and depends on a variety of factors, such as whether the patient has underlying diseases and whether clinical symptoms are present. If bilateral carotid atherosclerosis has no obvious symptoms and there are no high risk factors for cerebrovascular disease, it is generally not serious. This is because as people age degenerative changes occur in tissues and organs and carotid atherosclerosis can occur. At this time, patients are advised to eat more fresh vegetables and fruits and take appropriate exercise. If the patient has high risk factors for cerebrovascular disease, such as diabetes mellitus, hypertension, etc., or already has obvious symptoms of cerebrovascular disease, this situation is more serious. If not treated in time it may cause acute cerebral infarction, manifested by slurred speech, crooked mouth and eyes, hemiparesis, hemiplegia, hemiplegic sensory impairment, etc., and in serious cases, it may even be life-threatening. If bilateral carotid atherosclerosis occurs, the patient should go to the neurology department of the hospital in a timely manner, improve the relevant auxiliary examination under the guidance of the doctor, and give targeted treatment.