Migraines are incredibly common. Prevalence is defined as the number of people who experienced the disease during a specified time frame. Using the standard ICHD (formerly I.H.S.) definition of migraine and conducting direct interviews, it is estimated that about 6% of men and 18% of women suffer from migraines during any year. This works out to over 28 million Americans with at least one migraine in the last year. 25% of people with migraine have at least one attack each week. One in four families have at least one person with migraine in the household.

Only about one half of those patients with migraine are aware they have migraine. A substantial number of these patients have been misdiagnosed with either recurrent sinus headaches or tension headaches. Of those not diagnosed with headache, over 70% report their headaches are severe or extremely severe.

Head Pain - What are the Sources