Peptic Ulcer Disease
摘要
Peptic ulcer disease (PUD) is defined as a defect in the lining of the gastrointestinal mucosa. Peptic ulcer is typically localized in stomach and duodenum, most commonly in the duodenal bulb due to the high exposure to gastric acid. The treatment strategy of PUD depends on the presence or absence of Helicobacter pylori (Hp) infection.