Chronic is a number per month, not a number of years.

THE WORD, AND WHAT IT ACTUALLY MEANS

Chronic headache means 15 or more headache days a month for more than three months. Below that count a headache disorder is episodic, however many years it has lasted.

“Chronic” in headache medicine is a counted threshold, not a description of how long you have suffered. People use it to mean “for years”; clinicians use it to mean a number, and the mismatch costs treatment.

What counts as a chronic headache?

• Chronic migraine: 15 or more headache days a month for more than three months, with migraine features on at least eight of them.
• Chronic tension-type headache: 15 or more days a month for more than three months.
• Chronic cluster: bouts lasting a year or more without a remission of at least three months.
• Medication overuse headache: 15 or more headache days a month while regularly overusing acute medication.

Fifteen is the number that recurs. Below it a disorder is episodic; at or above it, it is chronic — and several treatments become available only on the chronic side of that line.

Why does the number of headache days matter?

Because eligibility runs on it. Botulinum toxin is indicated for chronic migraine specifically. Some CGRP access pathways differ by frequency. And the whole approach shifts from treating attacks to reducing them.

People sitting at 18 headache days a month routinely do not know they qualify for anything, because nobody ever counted with them and “chronic” was used loosely in the room to mean “long-standing.”

Can chronic headaches go away?

This is the part most worth saying. The word sounds like a life sentence and it is not a prognosis. A substantial proportion of people revert from chronic to episodic when the drivers are addressed — particularly medication overuse, sleep, and the metabolic terrain. The category describes where you are this quarter, not where you will be.

Another driver, and the one that decides whether reversion holds, is whether the life around the treatment has any recovery in it. That is why the plan here covers the week as well as the prescription.

Frequently asked questions

What does chronic headache mean?

Fifteen or more headache days a month for more than three months. It is a counted threshold, not a statement about duration in years.

Am I chronic if I have had headaches for a decade?

Not necessarily. Ten years of two headaches a month is episodic. The count is per month, not per lifetime.

Does chronic mean incurable?

No. Reversion to episodic is common when the drivers are addressed.

How reversion from chronic to episodic happens is covered in chronic migraine.

How do I find out which category I am in?

Count for two weeks and double it, including days you treated early. How to count properly.

Where this leads

• Chronic migraine
• Daily headache
• What the threshold unlocks
• Overuse
• The counts

Why withdrawal alone treats the overuse and not the migraine underneath it.

Some headaches start on a day you can name and never stop.