Answer: Foul smelling, frothy stools – Green stools in itself may not be a cause for concern, but when it is coupled with foul smelling and frothy poop it could be a sign of an infection. While frothy green poop can be a sign of too much foremilk, froth can be caused by the presence of mucus in the poo too.
check if u gave any green leafy vegetables for ur baby to eat .? or if ur baby is teething? or how many times did ur baby pass green poop ? does it have mucus in it ?