By Richard N. Fogoros, M.D., About.com Guide
Created: October 28, 2004
About.com Health's Disease and Condition content is reviewed by our Medical Review Board
Some causes related to other disorders: Numerous conditions involving the respiratory tract - from a simple cold to severe lung disease - can produce cough.
Significance: Any cough that is related to shortness of breath, or that persists for more than a few days, or that produces bloody or thick sputum, should be evaluated by a physician.
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