Vomiting and dizziness are usually symptoms caused by cranial diseases, vestibular system diseases, cervical spine diseases and so on. 1. Cranial diseases: such as cerebral arteriosclerosis, cerebral blood supply insufficiency, cerebral infarction, cerebral hemorrhage, intracranial infection, brain tumors and so on, all of which can cause vomiting and dizziness. 2. Vestibular system diseases: such as benign positional vertigo, vestibular neuritis, Meniere’s syndrome, motion sickness, etc., which can lead to abnormal balance function and symptoms of vomiting and dizziness. 3. Cervical spine diseases: such as cervical spinal cord tumors, cervical spine tuberculosis, cervical spondylosis, etc., can also lead to dizziness and nausea symptoms. When nausea and vomiting symptoms occur, you need to go to the hospital in time to do relevant examinations, such as cranial nuclear magnetic, cranial CT, cervical spine MRI, etc., to clarify the cause of the disease for targeted treatment.