A member asked:

What causes blue vomit on kids?

A doctor has provided 1 answer
Dr. Adam King answered

Specializes in Internal Medicine and Pediatrics

Something Blue: Blue is not a physiologic color. Green, red, yellow and clear are typical. Blue is a primary color, as such there is no combination of bodily fluids that would appear truly blue. Therefore, your child is likely ingesting blue coloring from some source. Remember, blue food coloring is commonly in green, purple and black food coloring.

Answered 3/4/2021

5.4k views

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