Menstrual migraine (also called "catamenial migraine") is term used to describe both "true menstrual migraines" and "menstrually related migraines". About 7%-14% of women have migraines only at the time of menstruation, these are called "true menstrual migraines". Most female migraneurs experience migraine attacks throughout the menstruation cycle with an increased number perimenstrually, these are referred to as "menstrually related" or "menstrually triggered migraine".