Collapsed Lung
Educational information. Individual clinical review of this presentation by Dr. Ehsan is not yet documented. It does not replace personal medical evaluation.
Source: MedlinePlus, National Library of Medicine. Read the original source
MedlinePlus data edition September 26, 2026. Imported September 27, 2026. These dates do not indicate a new clinical review of the article.
A collapsed lung happens when air enters the pleural space, the area between the lung and the chest wall. If it is a total collapse, it is called pneumothorax. If only part of the lung is affected, it is called atelectasis.
Causes of a collapsed lung include:
- Lung diseases such as pneumonia or lung cancer
- Being on a breathing machine
- Surgery on the chest or abdomen
- A blocked airway
If only a small area of the lung is affected, you may not have symptoms. If a large area is affected, you may feel short of breath and have a rapid heart rate.
A chest x-ray can tell if you have it. Treatment depends on the underlying cause.
NIH: National Heart, Lung, and Blood Institute
Symptoms, tests and care options
Further reading selected by MedlinePlus. Links open the original organizations’ websites.
- Bronchoscopy and Bronchoalveolar Lavage (BAL) · National Library of Medicine
- Chest tube insertion - series · Medical Encyclopedia
- Chest Tube Thoracostomy · American Thoracic Society
- Pneumothorax - series · Medical Encyclopedia
- Shortness Of Breath (Dyspnea) · American Academy of Family Physicians
- Tests for Lung Disease · National Heart, Lung, and Blood Institute
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For a life-threatening emergency, call 911 in the U.S. or your local emergency number.
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