Most frequent cause: Smoking or secondary tobacco exposure is the most frequent cause of chronic obstructive pulmonary disease. However, it's not the only one, as some genetic conditions can predispose one to copd. So can the work environment. Go see your family physician for pulmonary function testing to confirm the diagnosis and then start treatment w/regular follow up pft to demonstrate proper therapy.
Answered 10/14/2012
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Most of the time...: There are types of COPD that are not caused by smoking but they are relatively uncommon. The vast majority of time COPD is caused by smoking.
Answered 6/10/2014
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