There are four primary criteria for diagnosis migraine in addition to having a headache longer than four hours:
- Is the headache unilateral (pain is located specifically in one side or the other)?
- Is the headache pain a throbbing/pulsating type of pain (like a heart beat)?
- Is the headache pain moderate to severe on the pain scale?
- Are headache symptoms worsened by activity, or so bad that they require avoidance of all activity?