Why babies put things in their mouth

By Dawn Kelly. Young babies learn use their hands and mouth to explore the world around them.

Person with arm around baby sleeping

Introduction

Young babies constantly have their fists in their mouths. As they get a bit bigger every toy and bit of blanket also ends up in their mouths. Then, when they are mobile, there's a whole range of household objects to put in there!

However, babies learn by using their hands and mouth to explore. Until your child is around 7 months they can only grip objects rather than stroke, prod or poke with her fingers. They put interesting things in their mouth because the nerve endings there are the most sensitive in their body - plus they have good control of their lips, gums and tongue.

It makes no sense to try to stop them. Just make sure that anything they can reach is safe to suck and not too small.

How CBeebies can help

You may be very safety conscious and remove all the little things from around the house, but older children may not be so worried.

In Nuzzle and Scratch's Hoof & Safety episode 'Here's Looking At Chew', they talk to children about looking out for small objects when babies are around.

You can watch this clip again on CBeebies. See our 'Answers from the web' section for the link.

How to make a magic moment

Make the most of your baby's desire to put things in their mouth by allowing them to play with food during family mealtimes.

Giving them an opportunity to explore food for themselves before you start weaning will help them to enjoy differing textures and tastes later on. Babies love exploring and finding out more about their food and drink by examining them with their hands and mouth.

Your baby will love grasping at peas and squishing them, dipping their fingers in their drink and sucking them, and putting their hands in a puddle of juice and splashing.

They will probably attempt to put the food into their mouth although they may not actually eat it but that's fine. It might be incredibly messy, but it is a great learning experience.

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Expert opinion

If a baby really wants to find out what something feels like, they put it in their mouth.

Your baby is likely to go on putting things in their mouth for a while. But by 9-10 months, they will start to use their hands more and, by 12 months, they will become increasingly interested in what toys can do.

At around 2 years, they will use their fingers to explore most of the time and, by the age of 3, mouthing has pretty much ceased.

Dawn Kelly, Baby & Child Development Expert, (RGN, RSCN, BSc, PGDipHV, PGDipEd, RNT, PGDipRes)

Top tips

  • Mouthing every object is their way of exploring objects so don't stop them from this learning experience.Make sure that anything they can reach is safe to suck.Avoid small objects as it could be a chocking hazard.Be aware of objects with sharp edges or corners.Avoid long objects (e.g. pencils) that they may push down their throat or into their eye.

Parent's tale

As soon as Alfie was born he had his fist in his mouth. By 3 months, his hands were in his mouth constantly and, when he learnt to scoop up objects, they'd go straight to his mouth too! At first I took things away from him as I thought it would be harmful, but now I understand that this is a way of babies 'feeling' an object.

I was really careful about what Alfie could get his hands on. It was impossible to keep everything super clean that could go into his mouth, but I did try to wash his toys regularly.

Sue, From Birmingham

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