A newborn’s stool patterns differ from adults’. The frequency or consistency of stools depend on the individual baby and on the food he or she is fed.
Your baby’s first bowel movements will consist of
meconium, a sticky green-black substance present in the intestine before birth.
For two to six days after birth, stools will be a mixture of meconium and milk bi-products, spinach-green, or yellow in color.
Later, your baby will have yellow, green, or brown stools, formed or unformed.
Breastfed babies rarely have constipation, or hard, dry stools that are
difficult to pass.
While some older breastfed babies have only one bowel movement per week, this is usually not indicative of constipation; their more mature digestive systems are efficiently using more of their mother's milk.
Diarrhea is characterized by stools that are mucousy, foul-smelling, more frequent than usual, blood-tinged, or watery (the diaper shows a water ring around the stool).