Thicker and darker phlegm may indicate the progression of an infection or be more prominent in the morning or when dehydrated,” he ... 1 According to doctors, coughing up yellow or green phlegm ...

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 ...

A higher-than-normal amount of phlegm can build up in your nose, throat, and lungs when you are sick. This build-up may cause coughing and discomfort. Bloody, brown, white, yellow, or green phlegm ...

There is currently no cure for this sometimes debilitating condition but it is still vital to seek medical treatment ...