"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." It’s never any fun feeling under the weather, but when a common cold is paired with excess phlegm, it ...

If you’ve ever fought a cold or infection in the past, chances are you’ve had the not-so-pleasant experience of coughing up green phlegm. Along with a runny nose and sore throat, green phlegm is ...

Coughing is one of the body’s most essential protective reflexes, designed to remove foreign irritants like dust, bacteria, and viruses from the airways. While it serves a critical role in keeping us ...

Add Yahoo as a preferred source to see more of our stories on Google. Curious about your snot? Plenty of people take a peek at what winds up in their tissue after a good nose blow, but doctors say ...

Phoebe Williams receives funding from the National Health and Medical Research Council, the Medical Research Future Fund, and the Gates Foundation. Niall Johnston does not work for, consult, own ...

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. Subscribe to our newsletter for the latest sci-tech ...

Phlegm buildup in the lungs and throat is a common problem, especially during colds, allergies, pollution exposure, or respiratory infections. Phlegm is a thick mucus produced by the respiratory ...

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 ...

Bronchitis may cause you to cough up blood, known as hemoptysis. Bronchitis is inflammation of the bronchial tubes, or airways, that usually happens due to an infection or breathing in irritants like ...

We know it well: That annoying sensation of mucus dripping down the back of your throat. Whether it happens when you’re getting over a cold or bogged down by spring or fall allergy symptoms, knowing ...