Mucus, a fluid in your upper respiratory system, is usually clear. But a number of health conditions can cause it to turn brown. Also known as brown phlegm or sputum, brown mucus can be due to a range ...

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 ...

Radon and smoking are both known causes of lung cancer, but when someone is exposed to both, the results can be deadly.

It’s never any fun feeling under the weather, but when a common cold is paired with excess phlegm, it makes matters even worse. This can lead to irritating symptoms, such as coughing, a sore throat, ...

Here are 4 questions you may want to ask a healthcare provider these question if you want to seek further care.

Medically reviewed by Amelia MacIntyre, DO Allergies, infections, acid reflux, smoking, and exposure to environmental irritants can cause extra mucus in your throat. Home remedies like drinking more ...

In a lab study, scientists have pinpointed a potential way to "break the inflammatory cycle" of asthma. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

Breathing disorders are common in the U.S. with conditions like COPD affecting some 7% of the population and asthma affecting another 10%. Digestive conditions like GERD, acid reflux, Celiac disease ...

Cystic fibrosis is a hereditary disease that so far has been incurable. Those affected have thick, viscous mucus secretions in their lungs, and lung function diminishes steadily over time. Today, ...