Phlegm is naturally clear. So, if your phlegm is a different color, such as yellow or green, you may have a viral or bacterial infection. Brown, red, or black phlegm may be a sign of a more ...

However, bronchitis is one of many conditions that can lead to excess phlegm, and while phlegm’s color provides some information on health status, it does not provide the whole picture.

If you're coughing up brown mucus, though, you should see a doctor because this could be a sign of bronchitis. Black mucus is usually due to smoking Black mucus is most common among heavy smokers ...

It could also be a sign of bronchitis, so check with your doctor if you're bringing up brown mucus. Black mucus: This could come from smoking or working in a place with a lot of dust and dirt.

Black mucus and/or phlegm can be caused by breathing in dark-coloured dirt or dust. “ Smoking can also cause black streaks in your mucus,” says Dr Brewer. Suffering from a cold?

“Nasal mucus that would necessitate a visit to your doctor may include frequent nosebleeds, nasal congestion that doesn’t go away, thick nasal mucus associated with facial pain, pressure, and smell ...

That's right, the color and consistency of your nasal discharge or what you cough up can shed some light on your body's immune system's responses. Here, doctors break down the meaning of your mucus ...

Viruses that lead to bronchitis are carried in mucus and saliva. Is it OK to be around someone with bronchitis? It depends on how much of a risk it poses to you.

“A distinguishing feature of a bronchitis-related cough, as opposed to a typical cough, is the presence of mucus production,” highlights Sharma. “This mucus may vary in colour, appearing ...

“Black mucus could be old dried blood, an infection, or a sign of something in the environment ― air pollution, smoke, dirt/dust ― that was trapped in your mucus,” said Dr. Markyia Nichols ...