duodenal bulb ulcer

Duodenal bulb ulcer refers to tissue damage of the gastrointestinal mucosa caused by self-digestion by gastric digestive juices, extending beyond the muscularis mucosae. Ulcers can occur at any site of the digestive tract, with the stomach and duodenum being the most common sites, namely gastric ulcer and duodenal ulcer. Their etiologies, clinical symptoms, and treatment methods are basically similar, and definitive diagnosis mainly relies on gastroscopy. Duodenal ulcer is similar to gastric ulcer in that it is tissue damage beyond the muscularis mucosae caused by self-digestion of the intestinal mucosa by digestive juices. It is more common in young and middle-aged adults, and definitive diagnosis mainly relies on gastroscopy.