Is my newborn baby constipated?
Healthy newborn babies are not constipated, so if your baby has not produced a stool (poop) by 24 hours, see your health-care provider. Some normal babies take up to 48 hours for their first stool, and premature babies may take a little longer. Infrequent passing of stools in the first few days may be a sign the baby is not getting enough colostrum or milk. Rarely, babies may be prevented from passing stools because of an anus that isn’t formed properly, a bowel abnormality, a low thyroid hormone level, or another health problem.