Difference Between Melena and Hematochezia
The difference between melena (black stool) and hematochezia (bloody stool) lies in stool color and bleeding location, serving as key indicators for gastrointestinal bleeding. This article explains definitions, causes, symptoms, and responses based on official medical information. Basic Definitions Melena refers to black, tarry stool where blood reacts with stomach acid to form hematin. Hematochezia … Read more