Social Communication Difficulties at 18–24 Months: When to Worry

If your toddler isn't pointing, sharing smiles or babbling back the way you imagined, it's natural to wonder — and asking early is a loving, sensible thing to do.

In short

Between 18 and 24 months, the most meaningful early signs of Social Communication Difficulties are about connection — sharing attention, gestures and back-and-forth interaction — rather than how many words your child has. A handful of skills are worth gently watching by this age, and if several are consistently absent across different days and settings, it's worth a developmental check. This is something to observe and explore — not a diagnosis, and not your fault.

What's appropriate to watch by 18–24 months

By around this age, most toddlers are building the social glue of communication. Gentle flags worth noting if they are consistently absent include:

• No pointing to show or share — pointing at a dog or plane just to share the moment with you (not only to request)
• Little eye contact during interaction — not looking to your face to share excitement or check your reaction
• Not responding to their name when called, after hearing is ruled out
• Few or no gestures — waving bye-bye, clapping, reaching up, shaking head
• Limited back-and-forth — not copying you, not bringing you a toy to show, little pretend play emerging
• A loss of skills — words or social warmth that appeared and then faded

A late first word alone is not, on its own, social communication difficulty — many late talkers catch up beautifully. It is the social thread — the wish and the ways to connect — that matters most here.

When to seek a check

Worry is reasonable, and acting on it is wise, if these patterns are persistent, show up across home and other settings, and several appear together. A loss of any social or communication skill, at any age, deserves a prompt check. At 18–24 months a structured developmental review is entirely appropriate — early connection-building support is gentle, play-based and most powerful when it begins early. First, do have your child's hearing checked, as it underlies so much of this.

The Pinnacle way

A clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre, under qualified clinician care — never from an online form or checklist. Our therapists look at your child's whole story — gestures, attention-sharing, play and language together — and build a warm, play-led plan around your family. Early speech and language therapy helps toddlers grow the joyful skills of connecting and being understood.

Trusted sources

WHO ICD-11 (6A01.22, developmental language disorder with predominantly pragmatic/social impairment); American Academy of Pediatrics developmental milestone guidance (healthychildren.org); CDC "Learn the Signs. Act Early." milestones (cdc.gov).

Next step — If several of these feel familiar, the kindest move is a calm conversation with a clinician. Book a developmental check with a Pinnacle speech-language therapist.