Complications

Left untreated, peptic ulcers can result in:

• Internal bleeding. Bleeding can occur as slow blood loss that leads to anemia or as severe blood loss that may require hospitalization or a blood transfusion. Severe blood loss may cause black or bloody vomit or black or bloody stools.
• A hole (perforation) in your stomach wall. Peptic ulcers can eat a hole through (perforate) the wall of your stomach or small intestine, putting you at risk of serious infection of your abdominal cavity (peritonitis).
• Obstruction. Peptic ulcers can block passage of food through the digestive tract, causing you to become full easily, to vomit and to lose weight either through swelling from inflammation or through scarring.
• Gastric cancer. Studies have shown that people infected with H. pylori have an increased risk of gastric cancer.