What Are the Causes of Chronic Bronchitis?

Q:
What are the causes of chronic bronchitis?

A:
Smoking is by far the most common cause of chronic bronchitis. It might be caused by workplace exposure to dust and toxic gases, which is a much less common cause, seen in miners and grain handlers. Air pollution can make symptoms worse for people with chronic bronchitis.

Keywords: causes chronic bronchitis; chronic bronchitis causes

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