This post was written some time ago and the clinical landscape may have changed. For the most up-to-date information, see: Migraine — current treatment overview.
In the graphic below, you will see how commonly migraine is reported all over the world. Prevalence is a measure of the number of people who have suffered the condition. For migraine, it is as high as 10-16%… More common than people think.
And more disabling than most think as well.