See below: Brown phlegm suggests altered or old blood and has the same significant as fresh blood. You ought to see a doctor.
Answered 12/22/2019
116 views
4 doctors weighed in across 3 answers
A doctor has provided 1 answer
6 doctors weighed in across 2 answers
9 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