Headache may be caused by physiological reasons, or may be caused by pathological reasons, such as migraine, tension headache, hypertension and other diseases, should be timely consultation to identify the cause of the disease. 1. Physiological causes: headache symptoms may appear in cases of prolonged stress, tension, fatigue, lack of sleep, etc., which can be relieved by reducing stress, relaxing, resting and improving sleep. 2. Pathological causes (1) Migraine: the cause of migraine is still unclear, and may be related to genetic, environmental, endocrine metabolism, mental and other factors. Patients often have throbbing pain on one side of the head, which may be accompanied by nausea, vomiting, fatigue, dizziness, blurred vision and other symptoms. (2) Tension headache: This disease is triggered by pericranial muscle or myofascial contraction or ischemia, release of inflammatory mediators, etc. It is also caused by depression, anxiety and other factors. Often bilateral or unilateral headache, can also involve the occipital neck, with persistent swelling, throbbing, pressure, tightness, mainly dull pain. (3) Hypertension: This disease may be related to aging, heredity, mental stimulation, smoking, and poor dietary habits. Headache symptoms may occur when blood pressure is not under control. There are many causes of headache, and patients are advised to go to the hospital and follow the doctor’s instructions for treatment.