The causes of sudden vertigo include otolith, vestibular migraine, vestibular neuritis, cerebellar and brainstem infarction or cerebral hemorrhage, and Meniere's disease, all of which can cause sudden vertigo. It is characterized by rotation of the sky and the earth, rotation of visual objects, accompanied by nausea, vomiting, and some accompanied by tinnitus. Sudden deafness can also be accompanied by sudden hearing loss. If vertigo occurs when the dynamic position changes, it often indicates otolith, sudden and persistent vertigo, and vestibular migraine and vestibular neuritis should be considered. If dizziness is accompanied by tinnitus and deafness, Meniere's disease and sudden deafness should be considered. In addition, the infarction and hemorrhage of cerebellum and brain stem can also cause sudden dizziness, but it is often accompanied by other symptoms of the nervous system, such as hemiplegia, partial numbness, dysphagia, and binocular vision.
