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Migraine Headaches

Condition Basics

What are migraine headaches?

Migraines are painful, throbbing headaches that last from 4 to 72 hours. When you have a migraine, it may be so painful that you aren't able to do your usual activities. But migraines can be treated. And even though they make you feel bad, they don't cause long-term damage.

What causes them?

Experts aren't sure what causes migraines. They believe that changes in the activity of brain cells may lead to inflammation in certain nerves, which causes pain. Migraines often run in families, so genetics may play a role for some people. Some things, called triggers, can cause a migraine to start.

What can trigger a migraine headache?

Triggers are things that can cause a migraine headache to start. They include changes in daily routine, foods, hormones, and medicines. They can also include lights, odours, changes in the weather, or other things in the environment. Strong emotions, such as depression or anxiety, can also be triggers. Triggers are different for each person.

What are the symptoms?

The most common symptom of a migraine headache is a throbbing pain on one side of your head or behind an eye. Some people have an aura shortly before or during the headache. During an aura, you may see spots or flashing lights. Other symptoms of migraine include nausea, vomiting, and sensitivity to light.

How are they diagnosed?

To diagnose migraines, your doctor will ask about your personal and family history and examine you. Your doctor will ask how many headaches you have, how long they last, and what symptoms you have. You may get tests if your doctor thinks your symptoms may be caused by another disease.

How are migraine headaches treated?

You can't cure migraines, but medicines and other treatments may help you feel better. Avoiding triggers can help too. You may be able to treat your headaches with over-the-counter pain medicine. If that doesn't work, your doctor can prescribe stronger medicine. You may also try medicine to help prevent migraines.

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Information about Migraine Headaches

Adaptation Date: 06/14/2024

Adapted By: Alberta Health Services

Adaptation Reviewed By: Alberta Health Services

Adapted with permission from copyrighted materials from Ignite Healthwise, LLC (Healthwise). This information does not replace the advice of a doctor. Healthwise disclaims any warranty and is not responsible or liable for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.

Information about Migraine Headaches

Adaptation Date: 06/14/2024

Adapted By: Alberta Health Services

Adaptation Reviewed By: Alberta Health Services