A child may use a skill less during illness, stress or a big routine change. But genuinely losing an ability they previously used consistently deserves prompt medical attention. This is not a moment to blame yourself, run repeated home tests or wait months for the next check-up.
First, describe what changed
Be concrete. “She used to wave every day and has not waved for two weeks” is more useful than “she seems different.” Note:
- which skill changed and when you first noticed;
- whether the loss was sudden or gradual;
- whether it happens everywhere or only in one setting;
- recent illness, injury, medication changes or major stress;
- changes in movement, speech, play, feeding, sleep or awareness;
- what your child can still do.
A brief video may help if it safely captures the concern, but do not provoke symptoms or delay care to film.
Contact a clinician promptly
Call your child’s doctor or appropriate local service and say clearly that your child has lost a previously acquired skill. Ask how quickly they should be assessed. The clinician may consider development, hearing, vision, movement, neurological signs, recent health and the child’s wider history.
Do not assume regression means one particular condition. Many different explanations are possible, and a proper assessment matters.
Know when it is urgent
Seek emergency care for a sudden skill loss accompanied by a seizure, new weakness or facial droop, difficulty breathing, inability to wake normally, severe headache, repeated vomiting, a significant head injury, high fever with serious illness signs, or a rapid change in awareness or behaviour. Use your local emergency number or service.
While you wait
Keep routines predictable and reduce pressure to perform the missing skill. Support communication in any form your child can use. Make environments safe if balance, mobility or awareness has changed. Tell childcare or school what you have noticed and ask for factual observations, not a diagnosis.
Our guide to clearer, easier-to-follow requests may reduce demands during an uncertain period, while age-and-ability life skills can help you keep participation manageable.
Asking early is not overreacting. It creates a clearer record, opens the door to assessment and ensures urgent signs are not missed.








