Dizziness but normal brain CT first excludes dizziness caused by intracranial infarction, hemorrhage, and occupying disorders. Dizziness can also be seen in posterior circulation ischemia, which is mainly caused by slowing down of blood flow in both vertebral or basilar arteries, resulting in brainstem and cerebellar ischemia, and can be accompanied by episodes of visual rotation, walking obliquity, and neurological deficits such as limb numbness and weakness. The treatment of posterior circulation ischemia is mainly to improve circulation and antiplatelet aggregation therapy. Dizziness can also be caused by cervical spondylosis, also known as cervicogenic dizziness, which is mainly due to a protruding cervical disc affecting the blood supply to the vertebral artery, resulting in compression of the dural sac and nerve roots, resulting in dizziness with normal brain CT and posterior occipital pain. Dizziness but normal brain CT can also be seen in peripheral vertigo, such as Meniere’s syndrome, vestibular neuritis, and benign paroxysmal positional vertigo, where the patient can present with dizziness while the brain CT is normal, and it is recommended to consult a neurologist if necessary.