Headache and dizziness should be seen in neurology. The most common causes of headache and dizziness are as follows: First, vascular headache is the most common type of primary headache, with headache as the main manifestation, headache as episodic distension, tingling, throbbing pain, which can be accompanied by dizziness, nausea and vomiting. Patients often have a family history of similar illnesses and no other neurological deficits other than headache and dizziness. Second, cerebrovascular disease, cerebral hemorrhage and cerebral infarction may occur with headache and dizziness, but often accompanied by other signs of neurological deficits, and cranial CT or cranial MRI can help confirm the disease. Third, brain tumor, if a tumor occurs in the brain, as the tumor grows, occupying symptoms will appear, and headache or dizziness will gradually occur, and CT or MRI can detect the tumor.