Fifteen-year-old headache may be caused by physiological factors such as nervousness, excessive pressure, or considered to be caused by migraine, neurological headache and other diseases. 1. Physiological factors: if the nerve tension, excessive pressure, long-term late night, may lead to local vascular spasm, the fifteen-year-old child headache. 2. Migraine: the cause of migraine is not yet clear, it may be genetic, endocrine disorders, improper diet, bright light stimulation, nerve cell excitability disorders and other factors. Headache can appear, the beginning of vague pain, with the development of the disease, can gradually form throbbing pain, when the activity aggravates the symptoms of pain. 3. Neurogenic headache: Fifteen-year-old children headache is also considered to be caused by neurogenic headache. Its cause is not yet clear, may be external pressure, high nervous tension, excessive caffeine intake, improper diet and other factors. It can be manifested as persistent dull head pain and pressure. Fifteen-year-old children headache may also have other causes, such as meningitis, brain tumors, intracranial hemorrhage, etc., it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, and then under the guidance of the doctor to give targeted treatment or treatment.