Rolling over and dizziness may be related to benign positional vertigo, or it may be due to cerebral arteriosclerosis, cervical spondylosis and other causes. 1. Benign positional vertigo: also known as otolithiasis. If there is a big change in the position of the head when turning over from side to side, it is easy to cause the otolith particles to fall off. When the otolith falls off to the semicircular canals, it may cause dizziness and vertigo, and may be accompanied by visual rotation, nystagmus and other manifestations. 2. Cerebral arteriosclerosis: usually caused by hypertension, hyperlipidemia and other underlying diseases, which can lead to narrowing of blood vessel lumen and thickening of blood vessel wall, resulting in slowing down of blood flow, causing the brain not to get sufficient blood and oxygen supply. In this case, turning over, it is easy to aggravate the insufficient blood supply to the brain and cause dizziness. 3. Cervical spondylosis: especially the existence of patients with cervical disc herniation, when turning over, it is easy to cause the protruding cervical discs to compress the local blood vessels, resulting in insufficient blood supply to the vertebral basilar artery, which may cause dizziness when turning over. Turning over dizziness, may also be caused by other reasons, if the symptoms of frequent recurrence, should be as early as possible to consult a doctor, diagnose the cause, by the doctor’s guidance for treatment.