Medically reviewed by Robert Burakoff, MD Bright red blood in your stool, also known as hematochezia, is a sign of bleeding in the lower digestive tract. It is most likely caused by a condition like ...

which can result in both blood when you wipe and blood in the stool, Houghton says. He says some common examples are: Ulcerative colitis Crohn's disease Infectious colitis (due to bacteria or a ...