The normal poop of a healthy breastfed baby is brownish yellow or green, seedy, and sometimes slightly runny. However, in the first few days after delivery, the baby may pass thick, blackish stools.

Baby poop colors can vary widely, but red, black, or white poop should prompt a call to the doctor. Soft, squishy poop is normal for babies on all-liquid diets, but hard or watery poop can signal ...