stress ulcer

Stress ulcer is an acute gastric mucosal lesion that occurs under severe stress reactions such as multiple trauma, severe systemic infection, extensive burns, shock, and multiple organ failure. It is one of the common causes of upper gastrointestinal bleeding. The lesions of stress ulcers have 4 major characteristics: 1. They are acute lesions that occur under stress conditions; 2. They are multiple; 3. The lesions are scattered in the acid-secreting areas of the gastric body and fundus containing parietal cells, and are very rare in the gastric antrum, which is only occasionally involved when the condition progresses or deteriorates; 4. They are not accompanied by high gastric acid secretion.