Coughing up white or clear phlegm balls can be a symptom of many conditions. It usually doesn't signify a serious condition unless you have other symptoms.

Microscopic, hair-like bodies on the cells that line our respiratory tract, called cilia, use a wave-like motion to sweep the mucus back out, triggering coughing, Dr. Cennimo says.

Medically reviewed by Michael Menna, DOMedically reviewed by Michael Menna, DO Coughing up mucus is often a sign of a respiratory infection, allergies, gastroesophageal reflux disease (GERD), or ...

It’s not uncommon when you develop a hacking cough from deep down in your lungs to cough up a gel-like substance known as phlegm, or sputum. While you may think nothing of it, simply associating it ...

Sometimes when you cough, you can bring up mucus, also called phlegm or sputum. When that happens, it's called a “wet” or "productive" cough. When you have one, it may sound and feel like ...

If you're dealing with green phlegm, it's important to get tested for COVID-19 so you can take care of yourself and avoid infecting others. Next up, here’s what symptoms of COVID-19 look like if ...

Plenty of things, including common illnesses like bronchitis, can lead people to cough up blood. Getty Images "The main issue is hemoptysis (coughing up blood or blood-stained mucus) is a sign of ...

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 ...