Bloody, brown, white, yellow, or green phlegm may be a sign of an underlying condition or infection. Viral and bacterial infections, allergies, and respiratory illnesses can cause phlegm as a symptom.

Drinking warm fluids like tea can help loosen thickened mucus in the lungs. Inhaling moist air using a humidifier or steam can make it easier to cough up and remove lung mucus. Controlled coughing ...

Breathing difficulties and persistent mucus buildup can significantly impact daily life, making simple activities feel exhausting and uncomfortable. When airways become congested with thick secretions ...