Gastroenteritis is inflammation in the digestive tract, including the stomach and the small and large intestines. When it's caused by a type of bacteria, it’s called bacterial gastroenteritis.

A barium swallow is an imaging test that uses X-rays to look at your upper gastrointestinal (GI) tract. Your upper GI tract includes the back of your mouth and throat (pharynx) and your esophagus.

Barrett's esophagus is when the normal cells that line your food pipe (esophagus) turn into cells not usually found in your body. The new cells take over because the lining of the esophagus has been damaged. The new, abnormal cells are ...

The Bernstein test (esophageal acid perfusion test) is used to see if you have gastroesophageal reflux disease (GERD).

Biliary atresia is a rare liver disease that occurs in infants. It is often found shortly after birth. The disorder affects tubes in the liver called bile ducts. If not treated with surgery, it can be fatal.

In blind loop syndrome, food is not able to follow the normal digestive route. Instead, it bypasses a section of your intestine.

An intestinal blockage interrupts the normal digestive process. Many possible causes can lead to intestinal blockage including scarring, a hernia, or tumors.