Dizziness caused by cervical spondylosis is mostly transient vertigo when the head rotates and can stand up on its own after a fall without other neurological pathological changes. Each side of the cervical spine has a vertebral artery supplying blood to the cranium. When the head is turned, one side of the vertebral artery is compressed and the blood supply is reduced; the other side of the vertebral artery can compensate to increase the blood flow to ensure the normal blood supply, so no abnormalities such as sudden collapse will occur. If the vertebral artery is compressed by a condition such as cervical degeneration, dizziness will occur suddenly when the head is turned, resulting in a fall. In some patients, dizziness is accompanied by a headache, mostly in the posterior and top of the occipital region, which may extend to the temporal region of both ears. This type of headache is usually a throbbing pain and may be accompanied by symptoms of autonomic dysregulation such as vomiting and nausea. Excessive rotation or flexion of the head can trigger sudden collapse. There is no discomfort or abnormality at the beginning of the attack, and there is no impairment of vision or speech after the fall. However, there is a sudden weakness of the lower limbs before the fall. Dizziness caused by cervical spondylosis can be distinguished from patients with intracranial tumors, such as dizziness, nausea and vomiting, etc. In this case, the patient will have symptoms of elevated blood pressure, and intracranial tumors can be seen on head CT. Dizziness caused by cervical spondylosis is mostly caused by vertebral artery type cervical spondylosis, which usually has no sequelae and is short-lived, without neuropathic changes.