Clear, bubbly phlegm may not be a problem, but in some cases, it may be a sign of an underlying health issue. Phlegm, or sputum, is a type of mucus the respiratory tract produces. The color of ...

When you breathe, allergens, viruses, dust, and other debris stick to your nasal mucus, which then passes out of your system. Sometimes, your body can make too much throat mucus, requiring ...

It is often mixed with air, making the blood appear bubbly or frothy. You may also cough up mucus tinged with blood, which can be mostly clear, yellow, or green in appearance. Coughing up blood ...

Nick Blackmer is a librarian, fact-checker, and researcher with more than 20 years of experience in consumer-facing health and wellness content. Extra mucus in your throat and chest is a common ...

The sticky, slimy goo plays an essential role in fighting off infections, shaping the gut microbiome and more. Credit...Sisi Kim Supported by By Nina Agrawal To many people, mucus is nothing more ...