Stomach ulcers are sores in the lining of the stomach or small intestine. They occur when the protective mucus that lines the stomach becomes ineffective. Signs a such as discomfort between meals or during the night, discomfort when you eat or drink, stomach pain that wakes you up at night, feel full fast, bloating, burning or dull pain in your stomach, heart burn You can prevent an ulcer caused by an H. pylori infection. However, you can reduce your risks by limiting aspirin
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