The initial stool your baby passes doesn’t smell bad. That’s since the black, tarry-looking stuff, called meconium, is sterile. Till the intestines are colonized with bacteria, there’s nothing to make poop stinky. Don’t go extoling your baby’s odorless poop, nevertheless; bacterial colonization starts with the first feeding. Some babies will actually pass meconium while still in the uterus, typically as an outcome of physiologic stress like an infection or a difficult delivery. When this occurs, the baby is at risk for lung disease, called meconium aspiration syndrome. Your newborn will most likely have his first bowel movement a long time in the first 24 Hr of life. When stooling takes longer than this, physicians search for issues such as digestive obstructions, an underdeveloped anus, or stool that is stuck, called a meconium plug.
When your baby is 2 to 4 days old, his poop will end up being lighter in color– sort of an army green– and less sticky. This so-called transitional stool is a sign that he’s begun absorbing early breast milk or formula and that his digestive tract is A-okay.
Baby’s First Poop Overview
Your newborn will continue to pass meconium over the first day or so, but if he is feeding well you’ll discover that over a couple of days the stool goes from black to dark green to yellow in color. Breastfed babies normally pass poop that appears like Dijon mustard, watery with little whitish seedylooking bits. Formula-fed babies might have less watery stool, usually pasty in consistency and yellow or tan in color. Lots of parents get concerned if they see the stool is green rather than yellow. In fact, all earth tones are fine, from yellow to green to brown.
When to Call the Doctor
There are 2 colors stool should not be. One is white. Stools the color of clay can be a sign of major liver disease. The other is red. While blood in a baby’s stool may just have been swallowed at delivery or may arise from mother’s nipples bleeding, it’s always smart to have a doctor check the baby out.