Dizziness/vertigo is a common clinical condition with a high prevalence and incidence and is the leading cause of outpatient visits. The onset of dizziness increases with age and is more prevalent in the elderly population. It has a variety of causes and manifestations. Dizziness is characterized by intermittent or persistent light-headedness and unsteadiness, and is often aggravated by walking, standing, sitting, or using the eyes. It is not accompanied by nausea, vomiting, or nystagmus. Vertigo is a kind of illusion of motion or spatial misperception of oneself or external objects. Patients subjectively feel themselves or external objects rotating, swinging, lifting and tilting. It is often accompanied by nausea, vomiting, and nystagmus. Dizziness/vertigo with accompanying symptoms: 1. Autonomic symptoms: change in blood pressure, sweating, pallor, diarrhea; 2. Ear symptoms: deafness, tinnitus, stuffy ears; 3. Eye symptoms: darkness in front of the eyes, double vision, blurred vision; 4. etc. Some of the dizziness/vertigo patients seen in outpatient clinics have had cervical-X-rays taken, especially in the elderly. However, cervical spine hyperplasia is not the main cause of cerebral insufficiency, and it is not possible to determine that a patient’s dizziness/vertigo is due to cervical spondylosis or insufficient blood supply to the vertebral basilar artery (VBI) due to cervical spondylosis based on the bone hyperplasia on the cervical spine film. The name vertebrobasilar insufficiency of blood supply (VBI) has been phased out and many patients with dizziness/vertigo are actually having benign episodes of positional vertigo that have been underappreciated. As you can see, identifying the cause is very important in the treatment of dizziness/vertigo.