Types of COPDThe two most common types of COPD are chronic bronchitis and emphysema. It is possible to have one or both of these diseases. You will also often have elements of chronic bronchitis and emphysema, rather than purely one or the other.
Chronic bronchitis causes inflammation of the air passageways and increased mucus production from enlarged mucous glands. This often causes a chronic cough. As the inflammation progresses over time, the airways become narrow and irreversibly obstructed. If you suffer from chronic bronchitis, it is likely you experience symptoms of coughing, increased sputum, shortness of breath and wheezing.
Emphysema is a disease caused by damage to alveoli where oxygen and carbon dioxide exchange occurs. Cigarette smoking is the most common cause of destruction of these air sacs, leading to an inability to absorb oxygen into the lungs. If you suffer from emphysema, shortness of breath is often the primary symptom, although coughing and wheezing may also be prominent.
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