Speech & Language · 3 min read
Selective Mutism: When a Child Can't Speak at School
Selective mutism explained for parents — what it is, what it isn't, and how speech and language therapy helps.
If your child talks freely at home but freezes at school or with unfamiliar people, it can be baffling and worrying. This is often selective mutism — and it’s more common, and more treatable, than most parents realise.
General information, not advice about your child. Book a free call →
What it is
Selective mutism is an anxiety-based difficulty. The child can speak — and does, comfortably, in settings where they feel safe (usually home) — but becomes unable to speak in others (often school or around unfamiliar adults). It’s not the child being shy, stubborn, rude, or “choosing” not to talk. (Source: RCSLT; National Autistic Society; NHS.)
What it is not
- Not defiance. The child physically can’t get the words out; anxiety freezes speech.
- Not “just shyness.” Shyness eases with familiarity; selective mutism can persist for years without support.
- Not caused by trauma in most cases. It’s an anxiety response.
Signs to look for
- Speaks freely at home, silent or whispering at school
- Blank or frozen expression when expected to speak
- May avoid eye contact or use gestures instead of words in tricky settings
- Relies on a sibling or friend to speak for them
How therapy helps
The evidence-based approach is gradual and pressure-free — never forcing speech. It works by lowering anxiety and building confidence in small, achievable steps, often involving school and family so the safe feeling spreads outward. Early support tends to work best, before avoidance becomes a habit.
What helps at home right now
- Take the pressure off. Don’t ask them to “just say hello.”
- Don’t speak for them by default — but don’t force it either.
- Praise brave communication, including gestures and whispers.
- Tell school it’s anxiety, not defiance, so they respond gently.
If this sounds like your child, a specialist SLT can put a proper plan in place. Book a free call →
Related: Terms explained · Speech milestones