Dull headache is a relatively common headache symptom, which may be due to physiological reasons, such as excessive tension, or pathological reasons, such as fluctuations in blood pressure, blood supply disorders in the brain or intracranial aneurysms. Specific causes need to go to the hospital for a systematic examination, under the diagnosis of the doctor to confirm the cause of the disease. 1. Physiological causes: If the patient is often overstressed, tired, sleep deprived, poor rest, etc., it will cause dull headache. In this case, it is necessary to pay attention to reasonable rest and maintain a good quality of sleep. 2. Pathological causes (1) Fluctuation of blood pressure: too high or too low blood pressure, or high or low blood pressure, or unstable blood pressure, are easy to cause the feeling of dull pain or swelling pain in the head. (2) Disorders of blood supply to the brain: Disorders of arterial circulation in the brain can cause insufficient blood supply to the brain, which can cause dull pain in the head, and this pain may be a pain in the whole brain or the whole cranium, or it may be a swelling pain in the temples bilaterally. (3) Intracranial aneurysm: Due to atherosclerosis, infection, trauma, etc., the direction of blood flow in the intracranial arteries changes, resulting in the walls of the arteries being subjected to the impact of the blood, which in turn results in the formation of an aneurysm, and the dull pain caused by the aneurysm is persistent. If the above situation exists, you should consult a doctor in time to clarify the specific cause of the disease and follow the doctor’s instructions for active treatment.