Is it normal for breastfed babies to poop once a week?

It can be surprising and concerning for new parents, but it is actually quite normal for an exclusively breastfed baby to go several days, or even up to a week or longer, without having a bowel movement. This is especially common after the first few weeks of life.

Why Does This Happen?

Breast milk is a highly efficient food source. It is so perfectly tailored to a baby's needs that there is very little waste product left over to form stool. In the first month of life, breastfed babies typically have frequent, seedy, yellowish stools. However, as their digestive system matures, they become more efficient at digesting breast milk. This can lead to a significant decrease in the frequency of bowel movements.

This pattern is unique to exclusively breastfed babies. Formula-fed babies, on the other hand, should have a bowel movement at least once every few days. If a formula-fed baby is going longer than this, it may be a sign of constipation.

Is it Constipation?

For a breastfed baby, the frequency of bowel movements is not the most important indicator of constipation. The key is the consistency of the stool. As long as the baby is otherwise well, feeding happily, gaining weight, and the stool is soft and pasty when it does come, then this infrequent pattern is normal.

Signs of true constipation in a breastfed baby would include:

• Hard, pebble-like stools
• Crying, straining, and obvious pain during a bowel movement
• A firm belly
• Refusing to feed

If a breastfed baby is going a long time between bowel movements but is otherwise happy and the stool is soft when it passes, this is not constipation and is not a cause for concern. It is simply a sign of a very efficient digestive system. However, if you have any concerns about your baby's bowel habits, it is always best to consult with a healthcare provider.