The causes of headache may be related to lack of sleep, or due to high blood pressure, migraine, trigeminal neuralgia and other causes. 1. Lack of sleep: If the mental stress is high in the near future, or if the patient regularly stays up too late, resulting in poor sleep quality and serious lack of sleep, which may easily cause brain dysfunction, headache may be caused, and may be accompanied by drowsiness, mental fatigue and other symptoms. 2. Hypertension: If there is a history of hypertension, and the patient does not take antihypertensive drugs regularly, coupled with poor emotional control, often anxious and angry, resulting in frequent fluctuations in blood pressure, causing headaches, which may also be accompanied by dizziness, nausea and other symptoms. 3. Migraine: It may be related to genetic and environmental factors, and the headache can be obvious during the attack of migraine, which may be accompanied by photophobia, phonophobia, nausea, vomiting and other symptoms. 4. Trigeminal neuralgia: Trigeminal neuralgia can be caused when the trigeminal nerve is compressed or damaged, which can also lead to headaches, usually cut-like or tear-like pain, and in severe cases, it can lead to sleep disorders, depression, anxiety and other complications. If you have frequent headaches, or accompanied by other obvious symptoms of discomfort, you should seek medical attention as soon as possible, after a clear diagnosis of the cause, the doctor will guide targeted treatment and conditioning.