1. Changes in the color of baby\’s stool 1.1 The color of stool in the neonatal period In the newborn period, the baby\’s stool appears black-green or dark green due to the discharge of meconium and maternal blood residues. 1.2 The color of stool in infancy As the baby gradually switches to breast milk or artificial feeding, the color of stool will also change. breastfed baby,