Migraine is a neurological disease, the most common and characteristic symptoms are occasional or regular strong and painful headaches in one (rarely both) half of the head. In this case, no serious head injuries, stroke, brain tumors, and the intensity and pulsating character of pain associated with vascular headache rather than a headache from the tension. Headache of migraine is not associated with an increase or a sharp drop in blood pressure, onset of glaucoma or increased intracranial pressure. Literally, hemicrania means "half head".