Gastrointestinal endoscopy to assess bleeding status based on Forrest classification. Forrest 3 duodenal ulcer is one of the Forrest classifications. So what does forrest 3 duodenal ulcer mean?

Upper gastrointestinal bleeding is defined as bleeding originating in the esophagus, stomach, and duodenum. Upper gastrointestinal bleeding is a common medical emergency and can be life-threatening.