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A 34-year-old member asked:

Why blood is seen in sputum or in cough in the case of bronchiectasis?

1 doctor answer2 doctors weighed in
Dr. David Dang
Radiology 15 years experience
Blood vessel rupture: Blood in sputum or hemoptysis in the setting of bronchiectasis is due to rupture of tiny blood vessels along the surface of the diseased bronchial tubes. Normally the amount of bleeding is minor but can be significant and require emergent care. Other causes of hemoptysis include infections, cancers and vascular diseases.
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Last updated Aug 17, 2017

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