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Migraine days a month, one number at a time
Counting migraine days a month is one of the clearest ways to describe how migraine affects you. Below, each count from 1 to 15 is explained in plain terms — where it sits, what episodic and chronic mean, and how to describe it to a doctor. ICHD-3 defines chronic migraine as 15 or more headache days a month; fewer is episodic.
1–14 days: episodic migraine
Fewer than fifteen headache days a month is what clinicians call episodic migraine. It ranges from the occasional attack to nearly half the month — and even a handful of days is worth counting, because a clear tally over several months tells a very different story from a single rough spell. It is also where keeping an eye on acute-medication days matters most.
- What does 1 migraine days a month mean?
- What does 2 migraine days a month mean?
- What does 3 migraine days a month mean?
- What does 4 migraine days a month mean?
- What does 5 migraine days a month mean?
- What does 6 migraine days a month mean?
- What does 7 migraine days a month mean?
- What does 8 migraine days a month mean?
- What does 9 migraine days a month mean?
- What does 10 migraine days a month mean?
- What does 11 migraine days a month mean?
- What does 12 migraine days a month mean?
- What does 13 migraine days a month mean?
- What does 14 migraine days a month mean?
15+ days: the chronic-migraine threshold
Fifteen or more headache days a month, for more than three months, is the ICHD-3 definition of chronic migraine. Reaching this threshold is not a diagnosis you give yourself — it is a count worth bringing to a doctor, because it changes the conversation about management. A dated record of exactly how many days, over which months, is the single most useful thing to walk in with.