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Green Baby Poop: Is It Normal?

Updated Jul 30, 20265 minGreen Poop • Formula • Iron

Key takeaway

Green stools are a common variation in babies, including babies fed breast milk or iron-fortified formula. Look for the overall pattern and accompanying symptoms rather than color alone.

Green poop is one of the most common “surprise” diapers. In many cases, it’s normal—especially if your baby is otherwise acting well.

Common reasons for green poop

•Iron-fortified formula or iron supplements

•Dietary changes (including solids)

•Mild digestive shifts (even normal day-to-day variation)

When green poop might need attention

Check in with your pediatrician if green stools come with:

•Persistent watery diarrhea

•Fever, vomiting, or poor feeding

•Signs of dehydration (fewer wet diapers, unusual sleepiness)

•Poor weight gain

Important: Educational content only—this is not a diagnosis.

Sources and further reading

Educational summary based on the pediatric and public-health resources below. Sources do not replace individual medical advice.

HealthyChildren.org (AAP) – The Many Colors of Baby Poop Seattle Children’s – Stools: Unusual Color

BabyPoop AI provides educational information only and does not replace professional medical advice, diagnosis, or treatment. If your baby seems unwell or you are concerned, contact a qualified clinician.

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