See a doctor : Dark colored phlegm is suggestive of blood in the phlegm. Consult with your family md to get worked up. There can be several causes.
Answered 7/23/2016
5.4k views
A doctor has provided 1 answer
4 doctors weighed in across 2 answers
3 doctors weighed in across 2 answers
2 doctors weighed in across 2 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question