Headache and dizziness are commonly caused by encephalitis, hypertension, colds, cervical spondylosis, cerebral atherosclerosis, cerebral infarction, cerebral hemorrhage, anemia, low blood pressure, low blood sugar and so on. The headache and dizziness caused by high blood pressure mostly occur in emotional excitement, excessive mental tension, and long-term poor sleep. Cerebral hemorrhage, especially subarachnoid hemorrhage, has obvious headache symptoms, sometimes accompanied by vomiting. Encephalitis mostly occurs in adolescents, lumbar puncture examination of cerebrospinal fluid, that is, monitoring the cerebrospinal fluid pressure can be clearly diagnosed. If headache and dizziness occur, it is best to go to the neurology department of the hospital in a timely manner, can be preceded by cranial CT, electroencephalogram and other routine examination, to clarify the cause of the disease and timely treatment. If you still have headache and dizziness after ruling out major diseases, you should pay attention to your daily routine, pay attention to your diet, quit smoking and drinking, and exercise appropriately.