The Asthma Society of Canada
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About Asthma
What Is Asthma?
How to Tell if You Have Asthma
Who Gets Asthma?
Common Asthma Triggers
What to Expect if You Have Asthma
What to Do if Your Asthma Worsens
Taking Control
Resources & Support
About Asthma

Who Gets Asthma?

Incidence Among Canadians
Asthma affects about three million people. Six out of ten people with asthma do not have control of their disease. Their poorly controlled asthma may lead a severe,
life-threatening asthma attack and permanent lung damage. Asthma symptoms do not have to be tolerated. Total asthma control is attainable for the majority of Canadians with asthma.

Asthma is not contagious. While its causes are still unknown, researchers have determined that asthma can be caused by both hereditary (inherited) and environmental factors.

Just because you have a parent with asthma (or an allergy) doesn't mean you'll have it too. But you might inherit the tendency to develop asthma. In other words, if one or both of your parents has asthma or allergies, it's more likely you will too. Exactly why, researchers aren't sure.

Whether or not you have a family tendency to develop asthma, you might have developed asthma by being exposed to one or more of your personal "triggers." Occasionally, people who hold certain types of jobs will come in contact with triggers in the workplace that cause asthma episodes. Doctors call this kind of asthma "occupational asthma."

While doctors can't always determine why someone gets asthma, they can recommend the best way to treat it. You can make sure your asthma is consistently well-controlled:

Do You Know Your Triggers?

Learn what things can cause asthma symptoms - and how you can avoid them. Plus, find out why, despite what you might think, you could be more affected by indoor triggers than outdoor triggers.

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Asthma Basics Booklet Series

We developed the Asthma Basics Steps to help you learn about good asthma control. Use these booklets to learn more about asthma diagnosis, triggers and medications, as well to guide your discussions with you doctor, pharmacist and asthma educator.

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DISCLAIMER: Content on this website is for information purposes only andnot a substitute for a qualified medical professional.
For specific information treatment and management your asthma and/or potential side effects of medications and
treatment, please consult your physician.