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    Hemothorax is a collection of blood in the space between the chest wall and the lung (the pleural cavity).


    The most common cause of hemothorax is chest trauma. It can also occur in patients who have:

    • Blood clotting defect
    • Chest (thoracic) or heart surgery
    • Death of lung tissue (pulmonary infarction)
    • Lung or pleural cancer
    • Tearin a blood vessel when placing a central venous catheter
    • Tuberculosis


    • Anxiety
    • Chest pain
    • Low blood pressure
    • Pale, cool and clammy skin
    • Rapid heart rate
    • Rapid, shallow breathing
    • Restlessness
    • Shortness of breath

    Exams and Tests

    Your doctor may note decreased or absent breath sounds on the affected side. Signs of hemothorax may be seen on the following tests:

    • Chest x-ray
    • CT scan
    • Pleural fluid analysis
    • Thoracentesis


    The goal of treatment is to get the patient stable, stop the bleeding, and remove the blood and air in the pleural space. A chest tube is inserted through the chest wall to drain the blood and air. It is left in place for several days to re-expand the lung.

    When a hemothorax is severe and a chest tube alone does not control the bleeding, surgery (thoracotomy) may be needed to stop the bleeding.

    The cause of the hemothorax should be also treated. In people who have had an injury, chest tube drainage is often all that is needed. Surgery is often not needed.

    Outlook (Prognosis)

    The outcome depends on the cause of the hemothorax and how quickly treatment is given.

    Possible Complications

    • Collapsed lung, leading to respiratory failure
    • Death
    • Fibrosis or scarring of the pleural membranes
    • Infection of the pleural fluid (empyema)
    • Pneumothorax
    • Shock

    When to Contact a Medical Professional

    Call 911 if you have:

    • Any serious injury to the chest
    • Chest pain or shortness of breath

    Go to the emergency room or call the local emergency number (such as 911) if you have:

    • Dizziness, fever, or a feeling of heaviness in your chest
    • Severe chest pain
    • Severe difficulty breathing


    Use safety measures (such as seat belts) to avoid injury. Depending on the cause, a hemothorax may not be preventable.


    Light RW, Lee YCG. Pneumothorax, chylothorax, hemothorax, and fibrothorax. In: Mason RJ, Broaddus CV, Martin TR, et al. Murray & Nadel's Textbook of Respiratory Medicine. 5th ed. Philadelphia, Pa: Saunders Elsevier;2010:chap 74.


    • Aortic rupture, chest X-...


    • Respiratory system


    • Chest tube insertion - ...


      • Aortic rupture, chest X-...


      • Respiratory system


      • Chest tube insertion - ...


      Tests for Hemothorax

        Review Date: 10/9/2012

        Reviewed By: Jacob L. Heller, MD, MHA, Emergency Medicine, Virginia Mason Medical Center, Seattle, Washington. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, and Stephanie Slon.

        The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.

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        St. Luke's Hospital - 232 South Woods Mill Road - Chesterfield, MO 63017 Main Number: 314-434-1500 Emergency Dept: 314-205-6990 Patient Billing: 888-924-9200
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