Everything above the large intestine is called the upper GI tract. The large intestine and everything below it is the lower GI tract. With the help of hormones and nerves, your digestive system ...

Bleeding in the GI tract is usually divided into upper GI tract or lower GI tract bleeding. There are various causes of bleeding in different regions. If you believe you may have GI bleeding ...

Currently available oral drugs for IBD must transit the entire upper digestive tract before they get to the lower gastrointestinal (GI) tract—the area where they’re actually needed ...

The immunochemical fecal occult blood test (iFOBT) is effective for predicting lesions in the lower intestine but not in the upper gastrointestinal (GI) tract, confirms a study in CMAJ (Canadian ...