If you’ve noticed mucus or blood in your dog’s stool or blood in your dog’s urine, you may be wondering if it’s a cause for concern. Bloody diarrhea can be especially worrying. While these are ...

Mucus isn't exactly something people give much thought to — until they're sick and dealing with a constantly runny nose. But mucus is actually an important part of a healthy immune system, according ...

Black mucus is rare. It can be the sign of a fungal infection, or exposure to pollutants such as coal, dust or cigarette ...

There are many potential causes for coughing up blood. These can range from minor to severe and may include noesbleeds, lung conditions, and blood vessel problems. The medical term for coughing up ...

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes the coronavirus disease (COVID-19), spreads through respiratory droplets and aerosols expelled when infected ...

Bloody boogers form when blood mixes with mucus in the nose and the mucus dries. Various causes may include nose-picking or ruptured vessels. The nose lining is delicate and rich in blood vessels, and ...

That persistent feeling of mucus dripping down the back of your throat or constant need to clear your nose isn’t just annoying — it’s a condition called catarrh that affects millions of Americans.

People often dismiss a cough as a minor ailment, but sometimes it can be a sign of an underlying problem, especially when ...

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 ...

Healthy phlegm is usually clear and runny, but many different health conditions can change the consistency or color. Phlegm, also called sputum, is mucus produced by your lungs that helps protect your ...

David King does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

Mucus is a natural substance that bodies produce to help get rid of potentially harmful microbes. While some mucus production in the body is healthy, too much can hurt. For example, Mayo Clinic notes ...