It's she BF? My boy had this for a while and I think it was because he was eating less due to teething and being distracted. I started taking fennegreek supplement to boost my supply and seems to have worked a treat. We were getting 2-3 green mucus nappies a day and since I've been taking it only had 2 in over a week- I think he is feeding better as better supply so he isn't having to work so hard when distracted and wanting to play, not feed!
@Natasha no she is formula fed, aptamil. It is due to teething I have noticed she normal does a green poop when the drooling is heavy.
The baby poop chart says it’s completely normal