Kids are what they eat at this age, and Technicolor poops are usually more a sign that they just ate some funky-colored yogurt or cereal than anything else. Blueberries can be quite dramatic; beets will dye both poop and pee red. Streaks of red may simply be a sign of small anal fissures, or breaks in the tissue, rather than anything serious. But the biggest thing you typically need to worry about at this age is keeping track of any foreign objects or toys your child may have swallowed, so that you can dig through his poop later to make sure the Lego came out the other end.
More Answers from Mehmet Oz, MD