A member asked:

My stool was a greenish blue color being half runny half hard. i drank a blue powerade yesterday but it has never caused this before. along with that ?

A doctor has provided 1 answer

Color from food dye: the color of your stool is the result of the food you ingested. nothing in the body causes blue colors. blue dye is used in medicine for this reason. blue is used to see areas for surgery because nothing in the body is blue (although veins look this way, they are not blue). check your stool again in a few days without eating anything with blue dye.

Answered 6/10/2017

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