by Teri Robert, Lead Expert

A trigger is a physiological stimulus which, when encountered, can trigger a headache or Migraine attack. Should not be confused with the root cause.

We often discuss the various Migraine triggers and how to manage them..

You can read more about triggers in:

For more terms, see our Migraine and Headache Glossary.


Medical review by John Claude Krusz, PhD, MD.

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Last updated January 2, 2010
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