According to Dr. Joydeep Ghosh, Consultant, Internal Medicine at Fortis Hospital, Kolkata, “Yellow or a little greenish phlegm is a warning sign of bacterial infection. Dr. Ghosh advises ...

Phlegm color can indicate underlying health issues. Clear or white may signal allergies or viral infections. Yellow or green suggests bacterial infection, needing prompt antibiotic treatment.

The symptoms can include coughing up thick yellow, green, or brown phlegm. Seek medical attention if you think you have ...