Medically reviewed by Amelia MacIntyre, DO 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 ...

An expert MD explains what red poop could mean for you, from harmless causes to signs of something more serious. The post ...

Anxiety is a mental health condition involving long-term patterns of significant worry, nervousness, or fearfulness. For some people, it can also cause physical symptoms, including diarrhea. If ...

These particles mix with mucus from the gallbladder and eventually become biliary sludge, which is commonly referred to as gallbladder sludge. Some people who have gallbladder sludge will show no ...

Changes in the consistency, color, smell, or frequency of stools are often the first clue that a person with UC is moving from a period of low disease activity (remission) to an active flare.

Erythematous mucosa is an inflammation in the lining of the digestive tract. Possible causes include colitis, gastritis, proctitis, and anusitis. Some cases can eventually lead to cancer. The ...

Constipation may present as fewer bowel movements or difficulty passing stools. Gas will often present with bloating and passing more flatus than usual. If someone has gas with constipation ...

(2) Physically, the barrier includes cellular and stromal components, from the vascular endothelium to the epithelial cell lining, and the mucus layer, which consists of a gel formed by the ...