My daughter has green bowls and diarrhea should I be concerned? My daughter is 10

Good . Good news! the only stool colors we get really concerned about are red (blood from colon), black (blood from small intestine or stomach), or white (liver is not working well). Colors such as brown, yellow, orange, green, even blue (blue kool-aid or blueberries) or purple (beets) can all be normal and usually associated with diet. If she has a persistent change in her stool habits, you should contact her physician since this could be a sign of an underlying disorder, but a one-time strange stool that is not red, black or white is usually of no concern. Other reasons to contact her doctor are fever, diarrhea that lasts longer than a week or any concern for dehydration.