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Chronic Obstructive Pulmonary Disease (COPD)

COPD is a chronic lung disease that causes difficulty breathing. It consists of two diseases: chronic bronchitis and emphysema. It is caused by long-term exposure to gases or particulate matter, most commonly cigarette smoke. When a person has COPD, less air is able to flow into and out of the lungs because of one or more of the following:

  • The walls of the airways in the lungs have become inflamed and thickened (known as chronic bronchitis)
  • The walls between many of the tiny air sacs in the lungs have been destroyed (known as emphysema)
  • The air sacs and the airways in the lungs have become less elastic
  • The airways in the lungs are producing more mucus than normal, which can cause clogging

COPD – Temple Lung Center