Because breastmilk is such a nutritious substance, sometimes almost all of it is absorbed, leaving little to move through the digestive tract. Stools may be infrequent -- perfectly normal breastfed infants may only have a bowel movement once a week. Other infants just have a slower (but completely normal) gut, so they also go infrequently. However, if your baby seems to be in pain or you have any concerns, call your health care provider.
Prolonged, severe constipation rarely has a medical cause (for example, the muscles in the intestine don't work or there is some sort of blockage), while infrequent, hard stools are very common.
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