Description

Chronic obstructive pulmonary disease (COPD) is a common lung condition caused by damage to the lung's airways or other parts. This damage restricts airflow and makes breathing difficult. It is associated with structural lung changes caused by long-term, chronic inflammation from exposure to harmful particles or gases, most frequently cigarette smoke. Chronic inflammation leads to the narrowing of airways and decreased lung recoil. Individuals suffering from COPD may experience lung damage or phlegm formation. The symptoms include tiredness, wheezing, breathing difficulties, and coughing, usually with phlegm. Symptoms may vary from being asymptomatic (no symptoms) to respiratory failure.