Many patients come to the doctor to ask if the dizziness they experience when turning their heads is related to their cervical spondylosis. In fact, this definition of cervical vertigo or cervical dizziness is currently very controversial in academic circles. The following is my personal opinion: 1. Cervical vertigo should exist, but the chances are very, very small. Some patients with very serious cervical spondylosis have herniated discs, which compress the vertebral artery in the transverse foramen and cause ischemic reaction. Or another group of people with cervical spine deformity, turning their head position causes torsion of the vertebral artery (which normal people do not) causing ischemia. However, please believe that the chances of these conditions occurring should be small enough for more than 98% of dizzy patients to exclude themselves from this possibility. Verification: Most of the ischemia caused by this type of lesion is vertigo (with spinning sensation), mostly accompanied by discomfort such as blackness and weakness, and the symptoms disappear quickly after resuming head position. 2. For this type of dizziness related to head rotation, most of them should be related to vestibular dysfunction. The vestibule in the ear contains the hemianopia, which processes information related to the position of the head. When a lesion occurs on one side, the signals provided by the vestibule on both sides are inconsistent when the head is turned and conflict occurs, hence the appearance of dizziness. This type of dizziness is characterized by dizziness that persists for a period of time after the head position is restored before it gradually improves. Patients with this type of dizziness should seek the help of an otolaryngologist rather than an orthopedic surgeon.