Vertigo is mainly caused by the following diseases: 1. ophthalmic diseases: such as myopia, geriatric hyperopia; 2. otologic diseases: such as purulent otitis media, eardrum perforation, eardrum injury; 3. cervical spine diseases: such as cervical spine deformation, cervical spine osteophytes; 4. brain diseases: such as cerebral thrombosis, cerebral hemorrhage, encephalitis, brain tumor; 5. systemic diseases: such as hypertension, hypotension, liver disease, kidney disease, lung disease; 6. endocrine system diseases: such as thyroid disease, adrenal system diseases.