Nappy Changing for Beginners: A Step-by-Step Guide for New Parents

You'll change somewhere between 4,000 and 6,000 nappies in your baby's first two years. It starts as terrifying and ends as autopilot. Here's how to get confident quickly.

What you need

Changing station: A changing mat (firm, wipe-clean) placed on a floor, table, or dedicated unit. Never leave baby unattended on an elevated surface — a wiggle can become a fall instantly.

Nappies: Sized for your baby's current weight. A newborn in a size 3 nappy will leak. If you're getting leaks, size up.

Cleaning: Cotton wool and warm water is the NHS recommendation for newborns (gentlest option for delicate newborn skin). Water wipes (99% water) are a close second. From around 4–6 weeks, most fragrance-free, unfragranced baby wipes are fine.

Barrier cream: Zinc oxide paste (Metanium, Bepanthen) at every change if prone to nappy rash; petroleum jelly (Vaseline) works as a basic barrier. Apply a visible layer — don't rub it in.

Nappy sack or bin: For disposal.

Step by step

1. Lay baby on their back on the changing mat. Gather everything you need first — never step away mid-change.

2. Unfasten the nappy but don't remove it yet. Use the clean front of the nappy to wipe away the bulk of any mess.

3. Lift both legs by holding baby's ankles together. Use a cotton wool ball or wipe to clean from front to back (particularly important for girls — always front to back to avoid urinary tract infections).

4. Clean all the creases — in the groin, inner thighs, and around the genitals.

5. Slide the dirty nappy away from under baby. Fold it closed and set aside.

6. Slide a clean nappy under — the back panel with the tabs should be at the level of the navel.

7. Apply barrier cream if using.

8. Bring the front of the nappy up between the legs. For newborns, fold the top of the front panel down below the umbilical cord stump (many nappies have a notch cut for this).

9. Fasten the tabs symmetrically — snug but not tight. You should be able to slide two fingers inside the waistband. Check the ruffles around the legs are pulled outward (not tucked in) — these catch leaks.

10. Wash your hands before and after changing.

How often to change

Newborns: Every 2–3 hours, or immediately after a poo. Never leave a poo in contact with the skin — the enzymes in faeces cause skin breakdown quickly.

Older babies: Every 2–4 hours, always immediately after pooing.

You can change a nappy as little as 6 times a day if it's clean — most families change 8–12 times in the first weeks.

At night: If baby is sleeping, don't wake to change a wet nappy. If there's a poo, change quickly with minimal stimulation (dim lights, no talking, straight back to sleep).

What's normal — the nappy contents guide

First poos (meconium): The first 1–2 days, poos are dark green-black, sticky, and tar-like. This is normal and expected — it's the amniotic fluid, skin cells, and other matter baby swallowed in the womb.

Transitional poos (days 3–5): As milk comes in, poos change to a greeny-brown transitional stool.

Breastfed poos: Yellow, mustard-coloured, seedy/grainy texture (like wholegrain mustard). Loose to watery. Can be every feed, or once every few days after the first month — both normal.

Formula-fed poos: Slightly firmer, more brown, more predictable in frequency. 1–4 times a day is typical.

After starting solids: Poos become more formed, smellier, and more varied depending on what was eaten. This is a shock to most parents.

When to be concerned about nappy contents

See your GP or call 111 if:

• Blood in the poo — bright red or dark, tarry black after the meconium stage
• White, grey, or chalky pale poo — can indicate a liver problem (rare but needs urgent investigation)
• No poo in the first 48 hours of life (meconium should have passed)
• Very watery, frequent poos in a clearly unwell baby — dehydration risk
• Mucus in poo persistently alongside other symptoms

Reusable nappies

Reusable (cloth) nappies have improved enormously — modern all-in-ones and pocket nappies are as easy to use as disposables. Benefits: significant long-term cost saving, lower environmental impact. Starting cost can be high (£200–400 for a full set), though many councils offer vouchers or loan schemes.

Nappy libraries (similar to sling libraries) allow you to try different styles before committing. Find your nearest via The Nappy Alliance (thenappyalliance.org.uk).

Changing boys vs girls

Boys: Point the penis downward before fastening — otherwise urine goes up and out over the waistband. Be ready for a stream of wee when you open a nappy — the air triggers it.

Girls: Always wipe front to back. Clean inside the labia gently but don't scrub or attempt to clean inside the vagina.

Both: Clean all the creases thoroughly — this is where nappy rash tends to start.