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Lung diseases A to Z

Lung disease doesn’t play favourites. It affects men, women, children, smokers, non-smokers and individuals who have never smoked. If lung disease is taking your breath away, you don't have to deal with it alone. We're here to help, with information on symptoms, causes, treatment and disease management.

Asbestosis is a chronic (long-term) lung disease caused by breathing in asbestos fibers. Asbestos is a heat-resistant mineral that used to be common in insulation, vinyl floor tiles, cement, brake linings and other products. 

Learn more about asbestosis

Asthma is a chronic disease in which certain triggers can cause your airways to swell and fill with mucus. This narrows your airways and makes it harder to breathe.  

Asthma can’t be cured, but with proper treatment, people with asthma can lead normal, active lives.

Learn more about asthma


Bronchiectasis is an obstructive lung disease in which the airways widen and stretch out. In some places this can cause little pockets to form in which germs, dust and mucus collect and get stuck, which can cause infection. 

Learn more about bronchiectasis

Bronchitis is swelling in your air passages (bronchi). Bronchitis causes the bronchi to swell and fill with sticky mucus, making it harder to breathe. 

Acute bronchitis lasts two to three weeks and is usually caused by a virus. 

A cough with mucus on most days for three months of the year is considered chronic bronchitis, which can contribute to COPD.

Learn more about bronchitis

Chronic cough is a cough that lasts eight weeks or more. 

It is estimated that chronic cough affects about 16% of Canadians between the ages of 45 and 85.

Learn more about chronic cough