Pathophysiology or abnormalities in the body that cause migraines are still not known. Several theories exist, but none has been proven to be the sole cause of migraine. More research is needed to truly understand the mechanisms of migraine headache. Most patients develop their first migraine headache in adolescence or early adulthood. Many women report that headaches worsen before or during the menstrual period.
Headache tends to gradually improve after menopause.
Pregnancy may improve, worsen, or have no effect on migraine. In any individual woman, each pregnancy may affect migraine differently. For information about migraine headaches in children, follow this link . Prophylactic headache medications are those drugs that are taken every day, regardless of whether a headache is being experienced, in the hopes of preventing headache attacks. The first dose is relatively low, and the dose is gradually increased if a headache occurs and if no intolerable side effects are experienced by the patient.