May depend how much: The answer to this depends somewhat on any underlying medical conditions (alcoholism, for example) as well as how much blood is present. Sometimes, when people have been coughing a great deal, for example, small blood vessels in the esophagus can break, making the sputum somewhat bloody. If there is a great deal of blood, though, it is definitely something that should be checked out right away.
Answered 9/28/2016
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
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