Newborn diaper log: what to expect

Diaper output is one of the main ways to know if your baby is getting enough milk or formula. Wet diapers and stool diapers tell your nurse or pediatrician a lot, so logging them is important.

What you log

Every time you change a diaper, you can log whether it was wet, stool, or both. You can also note the color and amount of stool if you want to — sometimes that detail is helpful for your nurses or pediatrician to know.

Wet diaper:

The diaper feels wet, or there’s visible yellow liquid in it. Count each one, even if it seems small.

Stool diaper:

The diaper has stool (poop) in it. You can note the color (brown, green, black) and texture if you want, though even just logging that it happened is helpful.

Why it matters

Diaper output is a sign that your baby is getting enough milk or formula. In the first few days of life, the numbers change as your baby’s intake goes up. Your nurses and pediatrician track this closely to make sure your baby is feeding well and your milk supply (if breastfeeding) is coming in.

Stool color changes

In the first days of life, your baby’s stool goes through several color changes. This is completely normal.

Day 1–2: Meconium (black or very dark)

This is the first stool, made up of material your baby had in the intestines before birth.

Day 3–5: Transitional (green or greenish-brown)

Your baby’s system is clearing out the meconium and starting to process milk or formula.

Day 5+: Mature stool

Typically yellow (if breastfed) or tan or brown (if formula fed), often soft or even seedy in texture.

If you notice stool that looks different from what you expect, mention it to your nurse or pediatrician.

Logging tips

  • •Log both wet and stool if both are there. Some diapers have both, and that counts as one diaper logged.
  • •Don’t worry about being perfect. If you forget to log one or estimate the number during a busy day, that’s okay.
  • •You can add notes. If something looks different or unusual, write a quick note when you log it.
  • •Ask your nurse or pediatrician about what diaper output to expect for your baby specifically.

When to reach out

Contact your nurse or pediatrician if you notice:

  • •No wet diapers for more than a few hours, especially on day 3 or later
  • •Stool that looks bloody, mucusy or unusually watery
  • •Any change that worries you