Vertigo is a motor hallucination caused by damage to different parts of the vestibular nervous system from the inner ear to the brain, resulting in a decrease in its function, overstrength or asymmetry on both sides, and a sense of rotation, turning, floating and lifting of oneself or (or) external objects in a certain direction. Dizziness is an illusion caused by distortion of peripheral sensory information afferent to the visual, deep sensory, vestibular otolith, cerebellar system and other parts of the body, resulting in a sense of swaying and instability in walking, sitting, standing, lying and other movements. Vertigo and dizziness can be different manifestations of the same disease. For example, posterior circulation ischemia, sudden deafness, otoliths, Meniere’s disease, etc. Dizziness is a persistent feeling of dullness or confusion caused by a variety of organic or functional diseases or long-term cerebral overwork that leads to a weakening of the cerebral cortex. For example, cerebral atrophy, multiple cavernous infarction, cerebral infarction, etc.