Dizziness is mainly manifested as dizziness, rotation of vision, often accompanied by nausea, vomiting, panic, sweating, and a sense of fear, and its duration varies from a few seconds to a few minutes, to several days. The common diseases of vertigo are as follows: 1. Posterior circulation ischemia is mostly caused by cerebral arteriosclerosis and cervical spondylosis, which not only manifests as vertigo, but also manifests as transient limb weakness, sensory disorder, mouth and eye distortion, swallowing difficulty, etc. Severe posterior circulation ischemia can cause cerebral infarction, which should be paid high attention. 2. Cerebellar infarction is caused by obstruction of blood vessels supplying cerebellum, which besides dizziness can also manifest as 3.Meniere’s syndrome, mostly seen in young and middle-aged female patients, patients often have symptoms such as tinnitus, stuffy ears and hearing loss. 4.Benign positional vertigo, mostly seen in elderly patients, is mainly induced suddenly when the position changes, manifesting as spinning, nausea, vomiting and other symptoms, often lasting about 1-3 minutes. After the appearance of vertigo and dizziness, you should actively go to the hospital to seek help from the doctor, so as to clarify the cause and treat the symptoms as soon as possible.