Upper gastrointestinal bleeding What are the changes in feces

The changes in stool may include tarry stool, bright red stool, and less stool.

1. Tarry stool The

blood of patients with upper gastrointestinal bleeding will be decomposed by gastric acid and intestinal enzymes, causing hemoglobin to be converted into hemoglobin iron, causing stool to be black and tarry.

2. Bright red stool

If the amount of upper gastrointestinal bleeding is large, the blood may not be completely decomposed and digested, easily causing stool to appear bright red.

3.

Less stool.