Dizziness, nausea and vomiting are relatively common symptoms in clinical practice, caused by the following diseases: first, caused by vestibular system diseases, mainly including Meniere’s disease, vestibular neuronitis, and vaginitis, which can lead to sudden dizziness, nausea and vomiting, and may also be accompanied by sympathetic excitation symptoms, manifested as cold sweats, panic and palpitations. Secondly, central nervous system diseases may also lead to dizziness, nausea and vomiting, such as sudden acute cerebrovascular disease, cerebral vasospasm, cerebral infarction, cerebral hemorrhage, and chronic onset of occupying lesions of the central nervous system, such as tumors in the cerebellum and brain stem, which may cause chronic dizziness, nausea and vomiting.