Gastrointestinal Bleeding Overview
Upper gastrointestinal bleeding: Upper GI bleeding originates in the first part of the GI tract-the esophagus, stomach, or duodenum (first part of the small intestine). Most often, upper GI bleeding is caused by one of the following:
Lower gastrointestinal bleeding: Lower GI bleeding originates in the portions of the GI tract further down the digestive system-such as parts of the small intestine beyond the duodenum, large intestine, rectum, and anus. The most common causes of lower GI bleeding include:
Bhupinder Anand, MD
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