How to buy the right size nappy

Babies come in all shapes and sizes, and it's essential to find the right nappy if you want a happy baby and happy parents. Nappy size charts are a handy guide to what nappies to buy, but you may find the process involves a bit of trial and error as you work out what suits your baby best. 

When to go up a nappy size

If nappies are leaking it’s usually a sign that you need to go up a size. Other indicators are nappy rash that develops at night – because smaller sizes are less absorbent and hold the damp fabric close to your baby’s skin. And of course if there are red marks where the nappy sits across your baby’s tummy that shows it’s become too tight. 

If nappies are leaking poo, however, it’s almost definitely time to go up a size. 

Weight or shape?

Sometimes the shape of your baby is more important that his weight. Parents of long, slim babies can find that nappies leak wee because the weight of a wet nappy pulls it away from the legs. In this case, you may find going back down a size (and changing more often if necessary) could be the answer.

It’s also important to think about how mobile your baby is when choosing a nappy. Some are designed to tailor for the needs of a more active baby, while others are best for night-time or a baby who spends more time sitting.

Stop the leaks

Sometimes tiny adjustments can make all the difference. So do check that you’re fastening the nappy properly with the tabs at the right angle – not too tight, but snug enough to stop leaks.

Also make sure you pull the leg ruffles out of the nappy, so that they are sitting against your little one’s legs.

It’s worth experimenting with different brands of nappy, as they all have slightly different shapes and rates of absorbency. 



In association with Tesco Baby Club