Yellow might mean staying mellow, but other colors have different meanings. According to Fisher, inflammation can create brown, black and bloody red mucus. Pinkish or red tones are likely blood ...

since they’re not as common as their yellow and green counterparts. “Brown mucus is common in colder seasons when the air in our homes has less humidity,” said Dr. Amanda Jo Marcellino ...

Nasal discharge that is yellow, green or brown can be a sign of ... While the color of the mucus does not distinguish between a viral or a bacterial infection, several other signs make it more ...

Julia Calderone wrote an earlier version of this post.

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 ...