There are many causes of internal head pain, and the common causes are mainly the following: 1, intracranial tumors, such as glioma, meningioma and other intracranial tumors can cause an increase in intracranial pressure, resulting in severe head pain, jet vomiting, retinal edema and other clinical manifestations. Acute cerebrovascular diseases, such as cerebral hemorrhage and subarachnoid hemorrhage, can cause an increase in intracranial pressure, resulting in severe head pain, vomiting, impaired body movement, speech difficulties and other clinical manifestations. In addition to the application of mannitol to reduce intracranial pressure, it is also necessary to treat the cause of the primary disease.3. Intracranial vascular malformation, which is due to congenital abnormalities of blood vessels, can also cause internal head pain, and the pain site is consistent with the site of the lesion. Complete angiography can clarify the diagnosis, and active surgical treatment is required after detection.