Health's Book

Definition

Chronic obstructive pulmonary disease (COPD) is one of the most common lung diseases. It makes it difficult to breathe. There are two main forms of COPD:

* Chronic bronchitis, defined by a long-term cough with mucus
* Emphysema, defined by destruction of the lungs over time

Most people with COPD have a combination of both conditions.

Symptoms

* Cough with mucus
* Shortness of breath (dyspnea) that gets worse with mild activity
* Fatigue
* Frequent respiratory infections
* Wheezing

Since the symptoms of COPD develop slowly, some people may be unaware that they are sick.