Coughing up thick, green mucus may mean a bacterial or, less often, viral infection, but that's not always true. You constantly breathe in bacteria, some of which are harmless, through your nasal ...

Having a runny nose with clear mucus can mean that you have excess drainage coming from your nose. Mucus that’s green-tinged or yellow can mean that your sinuses have been exposed to an irritant ...

Boogers are dried nasal mucus (snot) that protect you against infections and allergens. Colors, like green or yellow boogers, can tell you about your health.

Mucus may also appear to be green when it thickens. If you notice a red or brown color in your mucus after you blow your nose that is often a sign that there's blood in it.

Thicker mucus tends to exit down the rear of the nasal cavity into the throat, moved by the action of cilia. My snot of many colours Mucus can be colourful stuff, which can make people worry.

People who have white, yellow, or green mucus that is present for more than a few days, or if they experience other symptoms, such as fever, chills, a cough, or sinus pain, should speak with a doctor.

Thicker mucus tends to exit down the rear of the nasal cavity into the throat, moved by the action of cilia. The human body produces around 100 mls of snot each day. Shutterstock ...

A telltale sign you’re getting sick is excess mucus, and if you’ve ever been desperate to stop coughing and sneezing, you’ve ...

"A blocked nose and green or yellow mucus are symptoms of the condition, as well as a sinus headache, a reduced sense of smell and pain, swelling and tenderness around your cheeks, eyes or forehead." ...

For example, thin mucus may be a sign of an early infection, but as the mucus thickens, this suggests more severe congestion in the nose, experts say. What does green mucus mean?

Yes, mucus – or snot, or phlegm – is gross, but it has vital clues about your health. Learn what it might be telling you and when to see a doctor.