You may not be as familiar with brown mucus because it's not as common as white, yellow or green. However, mucus may appear brown due to the "presence of aged blood, airborne irritants such as ...

This happens because hormonal changes can increase the mucus produced by your vagina ... This condition can cause a frothy white, yellow, or green discharge. It may also cause: Itching Pain ...

Julia Calderone wrote an earlier version of this post.

extra white blood cells rush to your mucus to help out. “Sometimes those white blood cells are covered with a green protein,” Eddy said. “The more white blood cells with those green proteins ...

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 ...

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