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 hemorrhoids or diverticular disease.

Bloody stools also occur, along with higher levels of allergy-related elements in the mucus in certain types of allergic ...

But it may influence what color your poop is. People with Crohn’s disease may experience malabsorption. So if you eat something vibrantly colored — bright ... blood or mucus in stools is ...