New research finds there is significant variation in the anatomy of the human digestive system, with pronounced differences possible between healthy individuals. The finding has implications for ...

The gastrointestinal tract (GI) is the pathway from your mouth to your esophagus, stomach, and small and large intestines. In the GI tract, nutrients and water from food are absorbed to help keep your ...

‌Capsule endoscopy is a procedure that allows your doctor to look inside your gastrointestinal tract. It's a type of endoscopy done using a wireless camera that fits inside a tiny, disposable capsule.

What Is an Upper GI Series? An upper GI series is a group of X-ray tests that look at your GI tract -- your food pipe (the esophagus), stomach, and the first part of your small intestine (the duodenum ...