Presence of Melena in Obscure Gastrointestinal Bleeding Predicts Bleeding in the Proximal Small Intestine

Background and Aims Melena is a symptom of upper gastrointestinal bleeding and usually indicates bleeding proximal to the ligament of Treitz. However, whether melena predicts bleeding in the proximal small intestine in patients with obscure gastrointestinal bleeding (OGIB) is unknown and the objective of this study.