Newborns usually have only a couple of wet diapers in the first days, then by the end of the first week you should see around 6 or more wet diapers in 24 hours, which is a key sign that your baby is well hydrated.

What’s normal by age

  • Day 1: Expect about 1–2 wet diapers in the first 24 hours.
  • Days 2–3: Typically 2–4 wet diapers per day as feeding is still getting established.
  • Days 3–5: Wet diapers usually increase to about 3–5 per day.
  • Day 5 and beyond: Most newborns have at least 6 wet diapers per day, and some may have up to 8–10 in 24 hours.

If your baby has fewer than the expected number for their age, or suddenly has much fewer wet diapers than usual, contact a pediatrician promptly as this can be a sign of dehydration.

Signs the diaper is “wet enough”

  • The diaper should feel noticeably heavy compared with a fresh one.
  • Urine is usually pale yellow; very dark yellow or strong-smelling pee plus few wet diapers can point to dehydration.

When to call the doctor

Contact your baby’s doctor or an urgent care line if:

  1. Your newborn has fewer than 3–4 wet diapers a day after day 3.
  1. There are fewer than 6 wet diapers a day after the first week.
  1. You see very dark urine, pink/red “brick dust” stains that persist, or your baby is very sleepy, hard to wake for feeds, or feeding poorly.

For any worries—especially in the first two weeks—it is always safe and appropriate to call your pediatrician or local nurse line and describe your baby’s diaper output and feeding.