In more in-depth terms, according to the Global Initiative for Obstructive Lung Disease (GOLD), a COPD exacerbation is a period in the natural course of the disease that is characterized by a worsening of a patient's baseline symptoms -- such as dyspnea, cough and/or sputum production. This change may well warrant a modification in the COPD patient's current medication schedule.
The two primary causes of COPD exacerbation are lung infections and air pollution.
Learn more about COPD exacerbation, including causes, signs and symptoms, treatment and prevention.

