Add Yahoo as a preferred source to see more of our stories on Google. Your small intestine is lined with tiny protrusions called villi that play a big role in digestion. Sebastian Kaulitzki/Science ...

Everybody poops. But did you realize the shape, size, smell, and frequency of your stool can say a lot about your overall health? Gastroenterologist John Pohl, MD, shares what a healthy poop should ...

There isn’t a one-size-fits-all answer for how often you should poop, but when it comes to what color your stool should be, expert consensus is much narrower. And deviations from it can be a cause for ...