Migraine Causes and Triggers

Reviewed by: HU Medical Review Board | Last review date: November 2010 | Last updated: May 2020

Migraine triggers and causes Overview

Migraine triggers are factors that contribute to migraine attacks.

Migraine causes are the underlying reasons in the body, especially in the brain, that may chemically lead to migraines.

About migraine triggers

Different migraine sufferers have different migraine triggers, which are also called precipitating factors. The same triggers may not spark a migraine each time. Triggers somehow lead to a series of events in the brain of migraine sufferers which leads to migraine symptoms.

About migraine causes

The underlying reasons for migraines are not certain. However, there are several chemical reactions and changes in the brains of people with migraines that have been documented and may be among the migraine causes most commonly associated with the recurring attacks.

To better understand your migraines, it is a good idea to write down as much information about your health history. You should also use a migraine journal to keep a record of each and every migraine attack. Write down what you were doing before each attack, anything you ate as well as the weather conditions. This information will help your migraine specialist give you the best advice on avoiding future attacks.

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