Does a dark stool mean bleeding ulcer?

While dark stools can sometimes indicate bleeding in the digestive tract, it isn't necessarily a sign of a bleeding ulcer. Dark, tarry stools are associated with upper digestive tract bleeding. They can be a result of an ulcer, but can also be caused by other conditions such as gastritis, esophageal varices, or certain medications. Bright red blood in the stool, on the other hand, is usually associated with lower digestive tract bleeding, such as hemorrhoids or anal fissures. If you have concerns about any change in your stool color or consistency, it is important to see a doctor for proper evaluation and diagnosis.