Melena is not a condition itself, but a symptom of bleeding in your digestive ... that's darker brown and harder than normal. But black, tarry stool is often a sign of bleeding in your digestive ...

However, bleeding in the gastrointestinal tract can also cause black, tarry stools. If this occurs, people may notice additional symptoms, including blood in the stool, abdominal cramps ...

Gastritis, or inflammation of the stomach lining, can also be a cause of black stool. It may result from excessive drinking, chronic vomiting, or medication use. Symptoms can include nausea ...

Common symptoms of colon cancer include abdominal ... Rectal bleeding is a sign of colon cancer, and it may make your stool look dark brown or black. And a change in bowel habits is crucial ...

Common symptoms of colon cancer include abdominal pain ... Rectal bleeding is a sign of colon cancer, and it may make your stool look dark brown or black. And a change in bowel habits is crucial to ...