Developmental regression is when a child loses skills they had already gained, such as words, social skills, play or motor skills. It is different from the short, temporary changes in sleep or behaviour that happen during illness or stress, and it should always be checked by a doctor.
Key takeaways
- Loss of words or social skills at any age is a reason to see a doctor.
- "Sleep regression" is a separate, everyday term and does not mean developmental regression.
- Early assessment helps find the cause and support.
When to talk to your doctor
See your doctor promptly if your child stops using words they used before, loses interest in people, stops pointing or playing, or loses motor skills such as sitting or walking.
