Vertigo can be diagnosed by the following four methods: 1) ophthalmology for myopia, hyperopia, eye and retinal lesions; 2) otorhinolaryngology for diseases caused by the five senses; 3) neurology for diseases caused by the head CT or MRI to confirm whether there is cerebral infarction, cerebral hemorrhage, cerebrovascular malformation, etc.; 4) cervical diseases for diseases caused by the cervical spine CT or cervical spine film or X-ray to confirm whether there is deformation, bending or joint dislocation of the cervical spine.