If you eat enough tomatoes at one time, your stool can take on a reddish appearance that can seem like blood. Doctors however can do certain tests to confirm that it is not in fact blood.

There are other ways which your stool can appear reddish in color, including iron supplement pills, Pepto-Bismol, and blueberries.

It is highly recommended that if you do see the presence of a reddish-color in your stool that you reflect on what you have put in your body in the last 24 hours, so as to rule out any of these possible reasons for the discolored stool.