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What is Selective Mutism, and what does it look like in early childhood?
Selective Mutism (ICD-11 6B06) is an anxiety-based condition where a child speaks freely in safe settings like home but is consistently unable to speak in others, such as school. It is not defiance or a language disorder. Often noticed between ages 3 and 6, it is supported gently, never by forcing speech, with diagnosis formed only at a Pinnacle centre.
In this answer 4 sections
Your child chats happily at home — yet falls completely silent at nursery. That isn't shyness or stubbornness; it has a name.
In short
Selective Mutism is an anxiety-based condition where a child speaks freely and comfortably in settings where they feel safe — usually home — but is consistently unable to speak in certain social situations, such as school or with unfamiliar adults. It is not defiance, rudeness or a choice, and it isn't caused by a language disorder. The silence is driven by anxiety, and with the right gentle support most children find their voice.
What it looks like in early childhood
You may notice your child:
- Speaking warmly and fully at home, but staying silent at nursery, in shops, or with relatives they see less often
- Freezing, looking away, or appearing 'switched off' when expected to speak
- Using nods, pointing, whispering, or tugging instead of words in those settings
- Being clearly able to talk — so this is not a delay in learning language itself
For a clinician to consider it, this pattern typically persists for at least a month (beyond the first settling-in weeks of starting school) and interferes with everyday life. Many children are first noticed around ages 3 to 6, when group settings ask more of them socially.
The Pinnacle way
Developmental measurement supports care planning; diagnosis requires an appropriately qualified healthcare professional., under qualified clinician care — never from an online form. Our approach builds confidence step by gentle step, never forcing speech. Learn more about Selective Mutism, explore speech therapy, and see how the AbilityScore® works.
Trusted sources
World Health Organization ICD-11 (code 6B06); American Speech-Language-Hearing Association guidance on selective mutism; American Academy of Pediatrics parent resources.
Next step — If your child speaks at home but goes quiet elsewhere, book a gentle developmental check with a Pinnacle clinician.
This is general information, not a diagnosis — individual assessment and diagnosis require an appropriately qualified healthcare professional.
CONNECT THE ANSWER TO YOUR CHILD’S DAY
Something to notice. Something to discuss.
What to notice
A child who talks freely at home but consistently cannot speak at nursery or with unfamiliar people for more than a month, beyond the normal settling-in period.
In everyday life
Never pressure your child to speak in tricky settings. Stay calm, avoid asking 'why won't you talk?', and praise small steps like whispering or pointing — reducing the spotlight lowers the anxiety.
Bring your observations and questions to your child’s professional. Choose activities that suit your child’s comfort, abilities and agreed plan.
Bring your questions to a first visitQuestions families ask
Is Selective Mutism the same as being shy?
No. Many children are shy and warm up slowly, but a child with Selective Mutism is consistently unable to speak in specific settings due to anxiety, even after weeks of familiarity — while speaking freely where they feel safe.
At what age is Selective Mutism usually noticed?
It is most often noticed between ages 3 and 6, when starting nursery or school asks more of a child socially. A clinician looks for a pattern lasting at least a month, beyond the normal settling-in period.
Will my child grow out of it on their own?
Some children improve, but anxiety can become more entrenched without support. Gentle, early, confidence-building help gives the best chance of a child finding their voice across all settings, so it's worth a developmental check.
FOLLOW THE SOURCE
References behind this answer.
- Source referenceWHO ICD-11 — Selective Mutism (6B06)
- Source referenceASHA — Selective Mutism
- Organisation website · further readingAAP HealthyChildren — Speech & Anxiety in Children
References are supplied with this answer. An organisation homepage offers further reading; it does not establish an independent review of this page.
Content attribution: SETU Consortium · Pinnacle Blooms Network.
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General information supports a conversation with an appropriately qualified professional. Advice, goals and support depend on the individual child.