It’s snot a laughing matter. The color of nasal mucus can help show what state of health a person is in, according to ear, nose and throat specialist Dr. Raj Sindwani of the Cleveland Clinic. “If your ...

If you’re blowing your nose regularly, it’s hard not to notice your mucus—and what color it is. So it can also be alarming if you happen to spot yellow, brown, bloody, or green mucus in your used ...

Medically reviewed by Susan Russell, MD Key Takeaways Coughing up white mucus can be a sign of an upper respiratory infection ...

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...

Your body produces mucus naturally to protect your respiratory system, and under normal circumstances, this protective fluid remains clear and relatively thin. However, when mucus suddenly changes to ...

Snot is made up of water, proteins, antibodies, and dissolved salts, explains Jonathan Parsons, M.D., a professor in the Department of Internal Medicine at The Ohio State University Wexner Medical ...

Mucus is a normal part of the lungs. But smoking and other issues can cause too much mucus to collect there. (Photo Credit: iStock/Getty Images) Your body makes about a liter (approximately 1 quart) ...