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 ...
The mucus in your stool may be white, yellowish-brown, or tinged with blood. If your digestive tract becomes irritated or inflamed, mucus production increases, and you may notice more mucus in ...