Growing up · ages 2 to 8
How do I talk to my child about their body and their boundaries?
9 min read6 sources · accessed on 26 September 2026
The short answer
How children discover their body, and the words that go with it
Children explore their whole body, genitals included. Little by little they understand that some situations or places aren't right for it, and then come games of doctors, where children look at their own body and other children's. It's a stage of development.
The words are the main thing. Teach your child the names of the parts of their body.3 For the genitals, choose neutral, accurate words: vulva, vagina, penis, testicles. The point is very concrete: a child who only has a pet name for a part of their body, or no word at all, can't talk about it either. A child who has the words can use them the day they need to.
Nudity at home is up to each family. If a child no longer wants to share a bath with a parent or be seen naked, that applies from now on, even if yesterday was different. The same goes for adults. It's the same rule, both ways.
Answer questions when they come. Children ask in the order they want to know, and stop when the answer is enough. No timetable does better.
Being allowed to say no, and not having to kiss
The sentence that decides everything day to day: your child's body belongs to them.1 That includes hugs and kisses from family. When your child pushes away an aunt's, an uncle's or another adult's cuddles, back them up.
In practice: saying hello at a birthday party is the best chance to practise. If a child doesn't want to give a kiss, there's no kiss. A wave, a handshake, or nothing at all: all of it is fine. It's awkward for the adults there, and that's exactly why it's useful. The child learns that their no counts for more than other people's awkwardness.
Tickling is the best practice ground. It's fun until suddenly it isn't, and that moment arrives without warning. An adult who stops at the first “stop”, every time, says more than any conversation.
When adults decide too, say so. Brushing teeth, washing hair, a doctor's examination, cream on a rash: here the child doesn't have the last word, and you can explain that. “I need to help you, I'll tell you what I'm doing.” The difference between a touch that's announced and one imposed in silence is the difference that matters later.
What doesn't work: demanding boundaries that aren't respected at home. A child whose “stop” is ignored during tickling learns something different at that moment from what the talk says.
Good secrets and heavy secrets
This distinction has a big advantage: it needs no picture of a threat. There are lots of good secrets that make people happy. And sometimes there are secrets that worry and frighten. Those, you're allowed to tell. The NSPCC's PANTS rule says the same: talk about secrets that upset you.1
The test is how it feels in your tummy. A good secret fizzes and has an end, usually a surprise. A heavy secret weighs you down, gets heavier with time, and often comes with a sentence like “this stays between us”. Children feel the difference long before they can explain it.
A second sentence is often missing: if someone doesn't believe you, tell someone else, and don't give up. In practice, this becomes a list of three names that your child chooses themselves: three people they know. A name is easier to remember than advice.
Why talk about situations and feelings: prevention messages talk about situations and what a child feels, rather than about strangers in the park. What a child needs is to recognise when something feels wrong, whoever it comes from.
Where the experts disagree
Nobody disputes that children need the right words and the right to their own body. The debate is about how much of the protection can be placed on the child. Three approaches:
| Approach | What it says | What it means for the story |
|---|---|---|
| Day to dayNSPCC; American Academy of Pediatrics | Knowledge about the body grows in passing: the real names, private parts that aren't touched without permission, the right to say no, and talking about secrets that upset you. | The story happens on an ordinary day. No particular occasion, no incident, no warning. |
| Prevention at schoolschool prevention programmes, such as Ireland's Stay Safe Programme | Knowledge makes children stronger: your body is yours, you can say no, a heavy secret can be told, and if nobody believes you, ask someone else. | These sentences are in the story, spoken by the characters. |
| Criticism of the no formulaan objection raised in prevention practice | Teaching children that they must say no risks them feeling guilty if they can't manage it when it counts. Responsibility lies with adults. | In the story there's a page where the word doesn't come out, and the child has done nothing wrong. |
What everyone agrees on
- The genitals have real names, with no nicknames and no silence.
- A child doesn't have to kiss or hug anyone, not even family.
- Good secrets can be told apart from heavy ones, and heavy ones may be told.
- When a child isn't believed, they ask the next person.
- Protecting children is the adults' job, and what a child learns doesn't replace it.
The first point of debate is the no formula. In its favour, the best data available: a Cochrane review of 24 studies with 5,802 children showed that school prevention programmes increase knowledge and protective behaviours, make it more likely that a child tells someone about what happened, and don't leave children more anxious or fearful.4 Against it, an objection from practice: a child who can't say no when it counts may look for the fault in themselves. And children show refusal in very different ways: some curl up, others look cross or cry.
The second point of debate is age. In Ireland, the Stay Safe Programme is taught in primary schools from Junior Infants, covering safe and unsafe situations, inappropriate touch, secrets and telling a trusted adult.2 How far to go, and with which words, with a four-year-old: no study we found answers that question.
And this is where the evidence stops. The Cochrane review states explicitly that none of the included studies measured whether the programmes actually make sexual abuse less common.4 What's established: children know more, protect themselves better and are more willing to talk. Whether they're abused less often, nobody knows. So we don't claim it, and our books don't either.
When a book isn't enough
If your child hints at something, the most important thing in the first minutes is to do as little as possible: listen, believe them, don't question them, don't push, don't suggest what they might have meant. Then talk to a professional before you act.
The same goes for an uneasy feeling without a specific suspicion. Uncertainty is reason enough to ask for advice, for example from your GP or paediatrician.
If you think a child is in danger, contact the police or your local child protection service. Children and young people can talk to someone themselves: in Ireland, Childline on 1800 66 66 66, run by the ISPCC, free and 24 hours a day;5 in the UK, Childline on 0800 1111, run by the NSPCC; in the United States, the Childhelp National Child Abuse Hotline on 800-422-4453 (800-4-A-CHILD), free and 24 hours a day.6
How a story can help
Nothing proves that a picture book reduces the risk for a child, and we don't pretend it does. What's established is the intermediate step: programmes that give children knowledge about their body and protective messages increase their knowledge and protective behaviours, without making them more anxious.4 A book is a very gentle way of doing the same thing, with one advantage over any conversation: it needs no occasion and can be read as often as you like.
For this subject, a stricter rule than for any other story:
No threat, no character who means harm. The story only tells what applies: the body belongs to the child, “stop” is listened to, and when something feels heavy, someone listens.
- 1-2
What my body can do
Running, climbing, holding, tickling. A body that does things, before anyone mentions rules.
- 3
Everything has a name
Elbow, spine, vulva, penis. In a list where nothing is stressed.
- 4
Mine and yours
Two children, two bodies, two boundaries. The start of everything else.
- 5
Tickling that tips over
It's fun, and suddenly it isn't. That moment gets its own page.
- 6
Stop
The word is said, and it's heard. Straight away, no discussion, no “one last time”.
- 7
With grown-ups too
Saying hello without having to kiss. A wave counts, a handshake counts, nothing at all counts too.
- 8
When the word won't come
Sometimes it gets stuck. The story says here that the child has done nothing wrong.
- 9
What grown-ups may do
Teeth, cream on a rash, the doctor. It's announced and explained.
- 10
A secret that fizzes
A surprise, with an end date. You keep it, and it's fun.
- 11
A secret that weighs
It gets heavier with time. No picture of what it is, only how it feels in your tummy.
- 12
The three names
The child lists the people who listen. People with names.
- 13
The first one doesn't listen
It happens. The child goes to the second name. The most important page in the book.
- 14
The next day
They were listened to, it's sorted, life goes on. Breakfast, an argument about socks, a perfectly ordinary day. No moral.
A story about their own body and the word “stop”
With your child's name, in the illustration style you choose. You read the whole story for free before you decide.
Create the story for freeFrequently asked questions
At what age should I talk to my child about their body?
As soon as they ask, and that often comes early. The American Academy of Pediatrics recommends teaching the correct names for body parts and which parts are private. The NSPCC's PANTS rule is written for children from about five, and in Ireland the Stay Safe Programme starts in Junior Infants. In between, what your child wants to know decides.
Does my child have to kiss their grandmother hello?
No. Their body belongs to them. A wave, a handshake or nothing at all are just as good ways to say hello. It's awkward for the adults, and that's exactly where your child practises.
Do books about boundaries frighten children?
There's no sign they do. A Cochrane review of 24 studies with 5,802 children found no sign that school prevention programmes increase anxiety or fear. Knowledge and protective behaviours improved, and children were more willing to talk about what had happened. Tone matters: a book that depicts a threat doesn't have the same effect as one that simply tells what applies.
How do I explain good and bad secrets?
By how they feel in your tummy. A good secret fizzes and has an end, usually a surprise. A heavy secret weighs you down and gets heavier with time. A second sentence goes with it: secrets that worry or frighten you, you're allowed to tell. And if nobody listens the first time, ask someone else.
Is it enough that my child has learnt to say no?
No. Protecting children stays the adults' job. The no message is itself debated: a child who can't manage it when it counts may feel guilty. And there's a gap in the research: in the 2015 Cochrane review, none of the 24 studies measured whether the programmes make sexual abuse less common.
Where can children and parents get help?
In Ireland, children can call Childline on 1800 66 66 66, free and 24 hours a day. In the UK, Childline is on 0800 1111. In the US, the Childhelp National Child Abuse Hotline is on 800-422-4453, free and 24 hours a day. If you think a child is in danger, contact the police or your local child protection service.
Sources
- 1.NSPCC: The Underwear Rule (PANTS).What it confirms: The body belongs to the child, the right to say no, talking about secrets; the PANTS programme for children of about five to eleven.
- 2.Curriculum Online (Ireland): Social, Personal and Health Education, Stay Safe Programme.What it confirms: A compulsory programme from Junior Infants on safe and unsafe situations, inappropriate touch, secrets and telling a trusted adult.
- 3.American Academy of Pediatrics, HealthyChildren.org: Sexual Abuse; Sexual Behaviors in Young Children.What it confirms: Teach children the correct names for body parts and which parts are private and not touched without permission.
- 4.Walsh, K., Zwi, K., Woolfenden, S. and Shlonsky, A. (2015): School-based education programmes for the prevention of child sexual abuse. Cochrane Database of Systematic Reviews.What it confirms: 24 studies with 5,802 children in seven countries; gains in knowledge and protective behaviours, a higher likelihood of telling, no sign of increased anxiety or fear, and no study measured whether the programmes make sexual abuse less common.
- 5.ISPCC: Childline Ireland.What it confirms: Childline Ireland on 1800 66 66 66, free and 24 hours, run by the ISPCC.
- 6.Childhelp: National Child Abuse Hotline.What it confirms: The Childhelp National Child Abuse Hotline on 800-4-A-CHILD (800-422-4453), free and 24 hours, for child abuse and neglect.
Sources accessed on 26 September 2026. Is something missing or out of date? Write to us and we'll correct it, with the date.
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