Chronic obstructive pulmonary disease (COPD) is a common lung disease. Having COPD makes it hard to breathe.
There are two main forms of COPD:
Chronic bronchitis, which involves a long-term cough with mucus Emphysema, which involves damage to the lungs over time
Most people with COPD have a combination of both conditions.
Other risk factors for COPD are:
Exposure to certain gases or fumes in the workplace Exposure to heavy amounts of secondhand smoke and pollution Frequent use of a cooking fire without proper ventilation