Gastrointestinal Hemorrhaging Gastrointestinal Bleed GI Bleeding Gastrointestinal hemorrhaging refers to bleeding that occurs within the gastrointestinal (GI) tract, which includes the esophagus, stomach, intestines, and rectum. This condition can manifest as either upper GI bleeding (e.g., from ulcers or varices) or lower GI bleeding (e.g., from hemorrhoids or colorectal cancer) and may require urgent medical attention and treatment to manage blood loss and address underlying causes.