Stomach Cancer Topic Guide
Gastrointestinal Bleeding Gastrointestinal bleeding either comes from the upper GI or lower GI tract. Upper GI bleeding can be caused by ulcers, gastritis, varices, cancer, or inflammation. Lower GI bleeding is caused by diverticulitis, cancers, IBD, infection, polyps, hemorrhoids, and anal fissures. Symptoms of GI bleeding include fatigue, weakness, shortness of breath, abdominal pain, vomiting blood, rectal bleeding, anemia, or a pale appearance. Treatment of GI bleeding depends on the cause.