What is chronic obstructive pulmonary disease (COPD)?
Chronic obstructive pulmonary disease (COPD) is a term used to describe a group of conditions that affect the lungs and cause difficulty breathing. This includes chronic bronchitis and emphysema. COPD is usually caused by smoking.
Author: Joanne Van der Velden
First answered: 18 Sep 2014
Last reviewed: 19 May 2018
Rating: 4.2/5 Votes: 494