Understanding how mucus changes, and what it changes in response to, can help diagnose illnesses and develop treatments. Researchers develop a system to grow mucus-producing intestinal cells and study ...

When you're sick you'll often produce more phlegm, and might notice it's thicker or a different color: white, green, yellow or maybe even brown. We all produce mucus, even when healthy. Mucus is a ...

When to worry: Seek medical help if your cough brings blood, causes severe breathlessness, or persists with weight loss, fever, or voice changes. Why it lingers: Post-infection inflammation, allergies ...

Cervical mucus is fluid produced by glands within the cervix. Throughout your menstrual cycle, cervical mucus changes consistently because of hormonal fluctuations. When you know what type of cervical ...

Mucus is a thin, slippery fluid that lines the nose, throat, and other passages to trap dust and germs. Phlegm is a thicker type of mucus produced in the lungs to catch and remove harmful particles ...

Our respiratory system is lined with a thin fluid layer called mucus on the inside. The mucus protects us from inhaling harmful and unwanted airborne agents from germs to pollutants; it achieves this ...

Clear, bubbly phlegm does not typically indicate a problem. However, coughing up large amounts could indicate an underlying health issue, such as fluid in the lungs. Phlegm, or sputum, is a type of ...

In a new study, researchers used CRISPR technology to test the impact of every human gene on SARS-CoV-2 infections in human lung cells. Their findings revealed new pathways that the virus relies on to ...

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 ...