Sometime in the first days after birth, your baby will pass a thick black or dark-green substance called meconium; this is normal.
Sometime in the first days after birth, your baby will pass a thick black or dark-green substance called meconium; this is normal. Within a few days, a breastfed baby will begin having six to eight bowel movements daily, which will be soft, yellow-green, and sometimes filled with seedlike particles. If your baby is formula-fed, on the other hand, they will likely have one to two stools per day, which will be thicker and yellow or tan in color.