Once there, the bacterium's spiral shape helps it burrow through the mucous lining. Pain is the most common symptom. Comes and goes for several days or weeks. Occurs 2 to 3 hours after a meal. Is relieved by food.
Some people experience only very mild symptoms, or none at all.
Sharp, sudden, persistent stomach pain. Bloody or black stools. Bloody vomit or vomit that looks like coffee grounds. Bleeding - when acid or the ulcer breaks a blood vessel. Obstruction - when the ulcer blocks the path of food trying to leave the stomach.