Chronic bronchitis is a long-term disease of the lungs. It is a problem with the airways of the lungs. Injury or irritation causes these airways to swell and develop extra mucus. This makes it difficult to move air in and out of the lungs. It will make breathing difficult.

Chronic bronchitis is a type of chronic obstructive pulmonary disease (COPD).

Chronic Bronchitis
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Chronic bronchitis is caused damage to the airways. The damage is caused by:

  • Cigarette smoking
  • Inhaling toxins or other irritants
  • Genetic predisposition can make a person's lungs more susceptible to damage from smoke or pollutants (alpha-1-antitrypsin deficiency)