1 September 2026 · Veronica Chi
Business & Product Director · Mum of two
How to Change a Newborn Baby's Diaper
Lay everything out before you unfasten anything, keep one hand on your baby the whole time, clean front to back, let the skin dry properly, and fasten the new one snug enough that two fingers slide under the waistband. That is the entire job, and after about a fortnight your hands do it while your mind is somewhere else.
It is worth doing carefully for the first weeks, though, because the two things that go wrong — the cord stump and skin that never quite dries in this climate — are both avoided at the changing mat rather than fixed afterwards.
What do you need within reach?
- A clean diaper, opened flat and ready. Not in the packet across the room.
- Cotton wool and warm water for the first few weeks, or fragrance-free wipes.
- A muslin square or wash cloth for drying, which matters more here than the wiping does.
- A change of clothes within arm's reach, because you will need it more often than seems reasonable.
- A spare diaper laid open underneath the first, so a fountain lands on something disposable.
- Barrier cream, only if the skin is already irritated. Not routinely.
One hand stays on the baby from the first unfastening to the last press-stud. Everything you might reach for has to be reachable without moving that hand.
How do you change a newborn's diaper step by step?
- Lay her on her back on a firm surface, at a height you can keep a hand on her at all times.
- Unfasten the tabs and fold them back on themselves so they cannot stick to her skin.
- Take hold of both ankles in one hand and lift her bottom gently — do not pull the legs straight or apart.
- Use the front of the old diaper to sweep the bulk of it downward, then fold it under her.
- Clean front to back, every time, and get into the creases at the top of the thighs where things collect.
- Dry properly. Pat with a soft cloth or give her thirty seconds of air; skin put away damp is skin that will be red by evening.
- Slide the clean diaper under her, back panel higher than the front, then lower her down onto it.
- Bring the front up between her legs and fasten both tabs symmetrically, snug but with two fingers' room at the waist.
- Run a finger around each leg cuff to pull the frill outward. A tucked-in cuff is the single most common cause of a leak.
What about the umbilical cord stump?
Fold the front of the diaper down below it, so the stump sits in open air rather than under a layer of plastic. Some newborn diapers come with a notch cut for this; if yours do not, a simple fold does the same job.
Keep it dry and leave it alone otherwise. It falls off on its own somewhere between five and fifteen days. Redness spreading onto the surrounding skin, pus, a bad smell or a fever are all reasons to ring a doctor rather than to wait and see.
Setting up for it
Does the cleaning routine change for a girl or a boy?
Front to back for a girl, always, and never clean inside the labia — the outside only. A little white or blood-tinged discharge in the first week is normal hormonal fallout from birth and needs nothing done about it.
For a boy, clean around the scrotum and under it without pulling back the foreskin, which is not retractable in infancy and should be left alone entirely. Point the penis downward inside the diaper before you fasten it, or the leak goes straight up the front of the bodysuit.
The drying step is the one that separates a comfortable baby from a sore one here. A soft muslin square patted over the skin takes ten seconds and does more for rash prevention in an 80%-humidity flat than any cream does — which is why we keep wash cloths at the changing mat rather than only at the bath.
How do you avoid being weed on?
Lay a clean diaper or a muslin loosely over the area for the two or three seconds after the old one comes off. Cold air on warm skin is the trigger, and the pause is when it happens. This is not a superstition — it is the single most reliable trick in the whole procedure.
What should you never do?
- Never step away from a changing table, not for a second, not for a baby too young to roll. Rolling arrives without notice.
- Do not use talcum powder. The particles are a respiratory risk and it does nothing useful for the skin.
- Do not use scented or alcohol-based wipes on a newborn. Water and cotton wool for the first few weeks.
- Do not pull the legs straight and apart to clean. Lift by the ankles with the knees free to bend.
- Do not fasten so tight that the waistband leaves a red mark visible ten minutes later.
Next questions
Questions parents ask
How do you change a newborn's diaper step by step?
Lay her on her back, unfasten and fold the tabs, lift by both ankles, sweep with the old diaper, clean front to back, dry properly, slide the clean one under with the back higher, fasten snug, and pull the leg cuffs outward.
How do you change a diaper around the umbilical cord stump?
Fold the front of the diaper down below the stump so it sits in open air. Keep it dry and leave it alone; it falls off between five and fifteen days.
Should you use wipes on a newborn?
Cotton wool and warm water for the first few weeks, then fragrance-free wipes. Avoid scented or alcohol-based wipes on newborn skin entirely.
How tight should a diaper be?
Snug enough not to gape, loose enough to slide two fingers under the waistband. A red mark still visible ten minutes later means it is too tight.
How do you stop a baby weeing during a change?
Lay a clean diaper or muslin loosely over the area for a few seconds after removing the old one. Cold air on warm skin is what sets it off.
Sources
- NHS — Nappies and nappy changing
- American Academy of Pediatrics — Baby's first days
- HealthHub — Ministry of Health Singapore
This guide is general information, written to help you understand a topic and ask better questions — it is not medical advice and does not replace your own doctor, midwife or paediatrician. Anything that worries you about your baby belongs with them.