“Black mucus could be old dried blood, an infection, or a sign of something in the environment ― air pollution, smoke, ...

Black mucus or phlegm is usually a sign of an underlying condition, smoking, or exposure to pollutants. Learn more about what causes black mucus and how to treat it.

Having black or dark phlegm or mucus can be distressing. It can often signal a serious disease or exposure to unhealthy pollutants. The presence of mucus is not a sign of disease and shouldn’t ...

Mucus can be several different colors, including green, yellow, and even black Doctors told DailyMail.com that most colors other than green aren't concerning READ MORE: What color are YOUR boogers?

Black mucus can signal a range of serious health issues, including environmental exposure and severe conditions like lung ...

If your mucus is black for no obvious reason, you should see a doctor. This is especially true if you have a fever, chills, or have difficulty breathing. This article was first published on Jan 1 ...

Apparently post-Lolla black snot is likely to be mucus-trapped soot from stage fireworks, according to Dr. David Zich, an emergency medicine physician for Northwestern Medicine.

It’s that time of year again, when everyone’s fighting a cold and blowing their nose. Maybe you’ve found yourself having sinus struggles, or you’ve noticed your boogers don’t look ...