According to medical information, Chronic obstructive pulmonary disease (COPD) is an ongoing lung condition caused by damage to the lungs.
The damage results in swelling and irritation, also called inflammation, inside the airways that limit airflow into and out of the lungs. This limited airflow is known as obstruction.
Symptoms include trouble in breathing, a daily cough that brings up mucus and a tight, whistling sound in the lungs called wheezing.
COPD is most often caused by long-term exposure to irritating smoke, fumes, dust or chemicals. The most common cause is cigarette smoke.
Although COPD can get worse progressively, it is treatable. With proper management, most people with COPD can control symptoms and improve their quality of life.