The causes of intermittent dizziness may be the following: 1. Inadequate blood supply to the cerebral arteries: mainly seen in middle-aged and elderly patients, patients usually have hypertension, diabetes, hyperlipidemia, and frequent smokers. These risk factors can easily lead to intracranial atherosclerosis, which can lead to long-term chronic inadequate blood supply and often episodes of dizziness and headache. 2, vertigo syndrome: the most common is Meniere’s disease or benign paroxysmal positional vertigo, it is recommended to go to the ENT department of the hospital and decide the specific treatment plan through the type after diagnosis. 3, cervical spondylosis: theoretically due to disc herniation It is easy to compress the corresponding blood vessels and nerves, and may also induce dizziness when the patient swings his head sharply or when the position changes, but dizziness caused by cervical spondylosis is relatively rare.