Stool is usually brown because of a balance of bilirubin and bile. Some conditions can cause bright yellow or pale yellow poop or diarrhea. Possible causes include dietary factors, stress, celiac ...

Cystic fibrosis (CF) is a genetic disease that causes a buildup of mucus in organs throughout the body. Stool, or feces, can indicate how your gastrointestinal tract is functioning and whether ...

Having some undigested food in your poop isn’t usually a cause for concern. But if you experience it often or along with additional symptoms, it may indicate a medical condition. The body eliminates ...