Insomnia headache the next day is mainly seen in the following aspects of causes: First, if insomnia patients have sleep disorders or dreamy or early awakening, then the basis of patients with hypertension disease in the case of sleep deprivation can cause an increase in blood pressure, there will be a headache the next day, mainly in the form of pulsating pain or boring pain in the head. Second, insomnia headache the next day is mostly seen in patients with chronic insomnia, if there is long-term sleep deprivation, the patient will have headache and dizziness after waking up in the morning, consider that it is related to chronic cerebral blood supply deficiency caused by insomnia, maybe it is related to cerebral vascular spasm caused by insomnia, then TCD examination can be done to clarify. In conclusion, the causes of headache on the second day of insomnia are mainly seen in the above two aspects.