Like yellow mucus, "green mucus is a sign that your body is actively fighting off an infection," says Dr. Connor. But, she adds that it can also point to something more serious and may be caused ...

This cold and flu season, you may be looking for clues you're getting better anywhere you can find them, even in the color of your snot.

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 ...

There are lots of unpleasant things about being sick. Leaking slimy green snot is near the top of my yuck list. I talked about it with my friend Linda Eddy. She’s a nurse for kids. She runs the ...

Julia Calderone wrote an earlier version of this post.