Why Is My Baby's Poop Green?

Other causes of green baby poop

According to Dr. Palmer, newborns being treated for jaundice with phototherapy can have green poop. Teething could also promote a greenish hue in stool, since teething babies swallow lots of excess saliva. Finally, "some parents report green poop after vaccinations," adds Dr. Palmer.

Are Breastfed Babies More Likely to Have Green Poop?

While both breastfed and fomula-fed babies can have green baby poop, the phenomena is actually more common in the latter. This is especially true if the formula is has an iron sulfate supplement or is iron-fortified.

When to Visit the Doctor for Green Baby Poop

Worried about bright green baby poop, dark green baby poop, watery green baby poop, mucusy green baby poop, or something in between? Rest assured that, on its own, this type of stool is nothing to worry about. It usually doesn't require any special treatment.

However, you should visit the doctor if your baby displays signs of illness, such as fever, lethargy, or vomiting. You should also let your pediatrician know if your baby is experiencing green poop mixed with diarrhea since this puts your little one at risk for dehydration. Signs of dehydration include decreased number of wet diapers, irritability, lack of tears, dry mouth and lips, sunken eyes, and sunken fontanel (soft spot on head). Finally, alert your provider if you don't think your baby is eating enough at feedings.