There are many reasons for patients to suffer from unexplained vertigo, the most common of which is that patients are prone to episodes of transient vertigo when squatting for a long period of time or when they suddenly get up too violently, which may be accompanied by symptoms such as blackness in front of the eyes and stars in the eyes. Patients with cerebral vasospasm or posterior circulation ischemia may also experience sudden onset of vertigo, which may be accompanied by cold sweats, fear of walking, fear of opening the eyes and other symptoms. The patient’s vertigo may also be caused by the dislocation of otolith particles, for example, the patient in the process of turning the head suddenly appeared episodes of vertigo, accompanied by the symptoms of rotating vision, the patient if the vertigo is accompanied by tinnitus, ear stuffiness should be considered to be the cause of Meniere’s disease.