About 75% of people presenting to the emergency department with<unk>  bleeding have an<unk>  source . The diagnosis is easier when the people have hematemesis. In the absence of hematemesis, 40% to 50% of people in the emergency department with<unk>  bleeding have an<unk>  source.
Upper gastrointestinal bleeding
Lower gastrointestinal bleeding
Rectal bleeding
Gastric varices
Gastrointestinal bleeding
Internal bleeding
Nosebleed
Retroperitoneal bleeding