See dr. if frequent: Coughing little bit of sputum tinged with blood is not uncommon and usually doesn't indicate serious condition.If you cough up blood frequently or cough up a lot of blood, must see doctor.Hemoptysis can result from many different underlying medical conditions. Bronchitis, bronchiectsis, TB infection are some causes of hemoptysis. Exercise induced hemoptysis has been documented in elite athletes.
Answered 6/10/2014
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