Neurogenic dizziness generally refers to vertigo, and the difference between cerebral insufficiency of blood supply is that the etiology is different. 1. Vertigo: Vertigo is a clinical symptom with a complex etiology, which is clinically categorized into peripheral neurological dizziness and central neurological dizziness according to the actual etiology. Among them, peripheral nervous dizziness is usually due to patients suffering from otolithiasis, peripheral neuritis and other underlying diseases, or due to the behavior of riding in a car, flying, etc., resulting in stimulation of the labyrinth of the inner ear, causing vestibular dysfunction. And central nervous dizziness is usually due to the presence of cerebral atherosclerosis, cerebral blood supply insufficiency and other conditions. 2. Insufficient cerebral blood supply: this disease is mainly due to patients suffering from atherosclerosis, vertebral artery cervical spondylosis, resulting in the blood vessels supplying blood to the brain is compressed, blood flow in the blood vessels is reduced; chronic heart failure and other diseases leading to a decline in the pumping function of the patient’s heart, and other factors, will lead to patients with ischemia of the brain, the cerebral blood supply insufficiency of the situation. To summarize, vertigo and cerebral blood supply insufficiency are two kinds of diseases, but because the cause of vertigo includes cerebral blood supply insufficiency, so there is a certain contained relationship between the two, that is, vertigo is not necessarily due to cerebral blood supply insufficiency, but cerebral blood supply insufficiency will cause vertigo.