Hemoptysis

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Causes

There are many underlying disorders that can cause hemoptysis (coughing up blood), ranging from heart problems to trauma to infections to lung disease. Worldwide, tuberculosis is the most common cause of hemoptysis. In industrialized countries, the most common causes are bronchitis, bronchiectasis, and bronchogenic carcinoma.


In patients with AIDS, the most common cause of hemoptysis is pneumonia. In about 15% to 30% of cases, the underlying problem is never found—undiag...Read the full article