There are many causes of headache, and the common causes are mainly the following: 1. Physiological factors, such as staying up late, irregular work and rest, poor sleep quality, mental stress and other factors, can also cause the symptoms of head swelling and pain. However, it is often transient and does not require too much worry and treatment. 2. Vascular neurological headache is a headache caused by brain dysfunction, which is mostly triggered by mental tension, fatigue and disturbance of work and rest, and there is no organic change in head examination. Its treatment is mainly by taking drugs to improve brain circulation, such as flunarizine hydrochloride capsule and Zhengtian pill, etc. 3, cerebrovascular diseases, such as cerebral hemorrhage, large cerebral infarction and other diseases, can not only appear the symptoms of head swelling and pain, but also have physical activity disorders, swallowing difficulties and even coma, etc. The diagnosis can be clarified by perfecting head examination.