There are many reasons for frequent headache, and the common causes are as follows: First, intracranial tumors, such as meningioma, glioma and other diseases, can pull and stimulate the surrounding blood vessels and nerves, causing frequent headache, and in severe cases, it can cause projectile vomiting and retinal edema, and improve the head-related examination, which can clarify the specific causes, and need to be actively treated. Second, intracranial infection, due to bacterial and viral invasion of brain tissue caused by brain tissue infection, can cause head pain, accompanied by chills, high fever, nausea, vomiting, improve the cerebrospinal fluid examination, can clarify the specific causes. Third, intracranial vascular malformation, due to congenital vascular development abnormality, with severe head pain, the pain site and the onset of the site of the same side, the need for intracranial angiography to clarify the diagnosis, and actively carry out surgical treatment.