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

The moment you notice blood in your cough, your world can suddenly feel like it’s spinning out of control. That metallic taste in your mouth and the frightening sight of red-tinged sputum can trigger ...

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 ...

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 ...

What's that cough? Everybody coughs; it's the number one illness-related reason people go to the doctor, according to the Centers for Disease Control and Prevention. Most cases of cough are temporary, ...

Coughing is one of the most common and noticeable symptoms of the condition, but it’s specifically a cough that lasts a long ...

Coughing up phlegm or sneezing out green snot is par for the course when you're battling a cold. But revolting as they are, these gooey substances do reveal important clues about your health. Coughing ...

Amanda Gardner is a health reporter whose stories have appeared in cnn.com, health.com, cnn.com, WebMD, HealthDay, Self Magazine, the New York Daily News, Teachers & Writers Magazine, the Foreign ...

People may experience a cough and sore throat, but no fever. Causes of this can include a simple irritation, infection, or obstruction in the throat. Coughing is a natural reflex that helps clear the ...