Black mucus is rare. It can be the sign of a fungal infection, or exposure to pollutants such as coal, dust or cigarette ...
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What Causes Phlegm?

If you're wondering how to get rid of phlegm in your chest and throat, you can try drinking plenty of fluids, using a humidifier, and gargling warm salt water. Phlegm, or sputum, is a slimy, slippery ...
If you’ve ever fought a cold or infection in the past, chances are you’ve had the not-so-pleasant experience of coughing up green phlegm. Along with a runny nose and sore throat, green phlegm is ...
Dear Dr. Roach: I am an 103-year-old woman with a medical problem that I hope you can help me with. I cough up a lot of mucus every day, which is clear with no discoloration. The cough can start at ...
Q: Over the years I have been bothered by coughing up phlegm from the back of my throat many times a day. One doctor told me it is not infected because the phlegm is white, but didn't really help me ...
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What Causes Brown Mucus?

Mucus, a fluid in your upper respiratory system, is usually clear. But a number of health conditions can cause it to turn brown. Also known as brown phlegm or sputum, brown mucus can be due to a range ...
Bronchitis may cause you to cough up blood, known as hemoptysis. Bronchitis is inflammation of the bronchial tubes, or airways, that usually happens due to an infection or breathing in irritants like ...
DEAR DR. ROACH: I am an 103-year-old woman with a medical problem that I hope you can help me with. I cough up a lot of mucus every day, which is clear with no discoloration. The cough can start at ...