Lung disease is any problem in the lungs that prevents the lungs from working properly. There are three main types of lung disease:
- Airway diseases -- These diseases affect the tubes (airways) that carry oxygen and other gases into and out of the lungs. They usually cause a narrowing or blockage of the airways. Airway diseases include asthma, COPD and bronchiectasis. People with airway diseases often say they feel as if they're "trying to breathe out through a straw."
- Lung tissue diseases -- These diseases affect the structure of the lung tissue. Scarring or inflammation of the tissue makes the lungs unable to expand fully (restrictive lung disease). This makes it hard for the lungs to take in oxygen and release carbon dioxide. People with this type of lung disorder often say they feel as if they are "wearing a too-tight sweater or vest." As a result, they can't breathe deeply. Pulmonary fibrosis and sarcoidosis are examples of lung tissue disease.
- Lung circulation diseases -- These diseases affect the blood vessels in the lungs. They are caused by clotting, scarring, or inflammation of the blood vessels. They affect the ability of the lungs to take up oxygen and release carbon dioxide. These diseases may also affect heart function. An example of a lung circulation disease is pulmonary hypertension. People with these conditions often feel very short of breath when they exert themselves.
Many lung diseases involve a combination of these three types.
The most common lung diseases include:
- Collapse of part or all of the lung (pneumothorax or atelectasis)
- Swelling and inflammation in the main passages (bronchial tubes) that carry air to the lungs (bronchitis)
- COPD (chronic obstructive pulmonary disease)
- Lung cancer
- Lung infection (pneumonia)
- Abnormal buildup of fluid in the lungs (pulmonary edema)
- Blocked lung artery (pulmonary embolus)
What's the best way to slow down lung damage due to COPD?
You can avoid flare-ups at home by doing which of the following?
Men with COPD are more likely to feel depressed than women.
Overnight oxygen therapy can help you sleep better.
What can pulmonary rehabilitation do for you?
Pulmonary rehabilitation can teach you a new way to breathe.
Walking is the best exercise for people with emphysema.
Flying can make breathing problems worse.
Medicines help people manage COPD, but not cure it.
Strengthening exercises are good for people with COPD.
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Reid PT, Innes JA. Respiratory medicine. In: Ralston SH, Penman ID, Strachan MWJ, Hobson RP, eds. Davidson's Principles and Practice of Medicine. 23rd ed. Philadelphia, PA: Elsevier Ltd; 2019:chap 17.