YOUR QUESTION. A CLEARER NEXT STEP.
Signs of Sensory Delay in an 18-to-24-Month-Old
At 18–24 months, strong sensory likes and dislikes are usually normal as your toddler learns to make sense of sound, touch and movement. Seek a developmental check when reactions are so strong or so absent that they disrupt eating, sleeping, dressing, playing or being with people, or when they come with delays in talking, walking or connecting. These are reasons to assess early — not a diagnosis — because early support works best.
In this answer 5 sections
When your toddler covers their ears at the blender or won't touch sticky paint, you're noticing something real — and gentle curiosity is the kindest first step.
In short
At 18–24 months, children are still busily learning to make sense of sounds, textures, movement and light, so strong likes and dislikes are completely normal. The time to seek a developmental check is when your toddler's responses to sensory experiences are so strong or so absent that they get in the way of eating, sleeping, playing or being with people — or when they travel alongside delays in talking, walking or connecting. None of this is a diagnosis; it simply means a clinician's calm look is wise now, because support at this age works beautifully.
What to watch at 18–24 months
Most sensory quirks at this age are self-soothing or a sign of a developing nervous system, and they settle as play and language grow. Gentle flags that deserve a clinician's eye include:
- Big reactions to everyday input — covering ears, melting down or panicking at ordinary sounds (vacuum, mixer, hand dryer), bright lights, or busy places, well beyond a normal startle.
- Avoiding touch and textures — strong distress with messy hands, certain clothes, tags or seams, hair-washing, nail-cutting, or refusing whole food textures (only crunchy, or only smooth).
- Seeking lots of intense input — constant spinning, crashing, bumping, mouthing non-food objects, or needing very firm squeezing to settle.
- Seeming under-responsive — not turning to loud sounds or their name, not noticing bumps or scrapes, or appearing "in their own world" much of the day.
- Travelling with other differences — few or no words, little eye contact or shared smiling, not pointing, unsteady walking, or losing a skill once had.
The aim is not alarm — it's that a calm, early observation turns small questions into early opportunities.
When to act
If sensory responses disrupt daily eating, sleeping, dressing or play, or come with communication, social or motor delays, arrange a developmental check now rather than waiting and watching. Note too that not responding to loud sounds or their own name deserves a hearing check as part of the picture. Trust your parent instinct — what you see every day is valuable clinical information.
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 list. Our occupational therapy team looks at how your child takes in and organises sensory information, watches when reactions appear, and builds gentle, playful support around regulation and daily routines. You can also explore our wider child-development support to see how everything fits together.
Trusted sources
American Academy of Pediatrics (healthychildren.org) guidance on sensory development and developmental monitoring in toddlers; CDC developmental milestones and "Learn the Signs, Act Early" resources; ASHA (asha.org) guidance on hearing and communication in early childhood.
Next step — Trust what you've noticed. Book a developmental assessment with a Pinnacle clinician for a calm, clear review of your toddler's sensory responses and milestones.
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
Seek a check if your toddler has big distress with everyday sounds, lights or textures; strongly avoids messy play, certain clothes or food textures; constantly seeks spinning, crashing or mouthing; or seems under-responsive — not turning to loud sounds or their name, or not noticing bumps. A check is wiser still when these travel with few words, little eye contact, no pointing, unsteady walking, or loss of a skill. Not responding to loud sounds also warrants a hearing check.
In everyday life
Keep a short phone note of when sensory reactions happen — which sound, texture or place set them off, and what helped your child settle. Noting the trigger and the calm-down gives a clinician a clear, useful picture.
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 it normal for my toddler to hate messy play or certain food textures?
Yes — many 18-to-24-month-olds have strong preferences as they learn about textures, and these usually ease with gentle, no-pressure exposure. It's worth a clinician's look only when the avoidance is so intense that it limits what your child will eat or do day to day, or comes with other delays.
My child doesn't always turn when I call their name. Should I worry?
Occasional not-responding when deeply absorbed in play is common. But if your toddler often doesn't turn to loud sounds or their name, arrange both a hearing check and a developmental check — these are simple, reassuring steps, not a diagnosis.
What's the difference between sensory delay and just a fussy toddler?
Most fussiness settles with routine and reassurance. The flag is when sensory responses are so strong or so absent that they get in the way of eating, sleeping, dressing, playing or connecting with people — that's when a calm clinician review is wise.
FOLLOW THE SOURCE
References behind this answer.
- Organisation website · further readingAAP HealthyChildren — toddler sensory & developmental monitoring
- Source referenceCDC — developmental milestones & Act Early
- Organisation website · further readingASHA — hearing & communication in early childhood
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.
PEOPLE, TOPICS & DEVELOPMENT
See the connections.
Browse the wider question collections connected with this answer’s audience, developmental area and stage.
FROM UNDERSTANDING TO PURPOSEFUL SUPPORT
One question. Your child’s whole life.
Your child’s self-sufficient, mainstream-included life is the purpose from the beginning. At Pinnacle, that purpose shapes what we understand, the goals we choose, the people we bring together, everyday practice and review.
Connect this question with the right support.
Explore how the relevant service contributes to everyday abilities, then speak with us about your child.
Make the next conversation useful.
Bring the situations you notice at home or school. We’ll explain a suitable service, centre and first visit, including availability and fees, before you decide.
How PinnacleAI® connects the journeyExplore the seven stages
- 1Understand abilities
A starting picture of your child’s capabilities.
- 2Choose meaningful goals
Readiness and a plan shaped around the child.
- 3Bring the right support together
Suitable therapies and people for those goals.
- 4Carry practice into everyday life
Guidance for family, home and school.
- 5Track and correct
Use observations to adjust the plan.
- 6Reassess and review
Decide what to continue, change or do next.
- 7Grow independence and participation
The child’s life gives each step its purpose.
Explore the whole PinnacleAI® system → · Participation at school and in the community →
PINNACLE’S EVIDENCE, OPEN TO YOU
Look at the evidence behind our work.
Read our research, inspect the original regulatory documents and check what each institutional measure means.
General information supports a conversation with an appropriately qualified professional. Advice, goals and support depend on the individual child.