“The potential causes of yellow mucus include the common cold or a bacterial infection such as sinusitis (a sinus infection) or bronchitis (a respiratory infection).” According to Connor ...

Boogers can be yellow, green, or brown because of the particles that get trapped in them. It's recommended that you avoid picking your nose, which can introduce any germs on your finger into your ...

Green snot also means you are likely fighting off an infection Your mucus can also turn green from a large build-up of dead white blood cells. If your mucus has been green for a few weeks or ...

Like yellow mucus, "green mucus is a sign that your body is actively fighting off an infection," says Dr. Connor. But, she ...

Yellow snot also indicates infection. Like with green snot, yellow snot is the collection of defensive white blood cell secretions. Generally, the greener the color, the more cells required for ...

If the mucus is very thick, green, dark yellow, or occurs with pain or redness in the eyes, it may be a sign of an eye infection. Anyone with these symptoms should speak with a healthcare ...

Green or yellow phlegm can occur with an infection, but brown phlegm might indicate bleeding in the lungs. Phlegm is a type of mucus that comes from the lungs and respiratory tract. Typically ...

A lot of people think yellow or green snot means you need an antibiotic. That is not true. Laura Martin, MD, MPH If it's a viral infection causing the yellow or green snot, yellow in particular is ...