object permanence
When Do Children Develop Object Permanence?
Object permanence — knowing objects exist when out of sight — usually begins around 8 months and is well established between 12 and 18 months. By the toddler years most children confidently search for hidden objects and enjoy peek-a-boo. It develops gradually, and a few weeks' variation is perfectly normal.
The first time your baby lifts a cloth to find the toy you hid — that little giggle of triumph is a whole new way of understanding the world.
In short
Object permanence — knowing that things still exist even when you can't see them — usually begins to emerge around 8 months and is well established by 12 to 18 months. By the toddler years (12–36 months) most children confidently search for hidden objects, look for a dropped spoon, and enjoy peek-a-boo because they know you're still there. This is a normal, gradual unfolding, not a sudden switch.The science, simply
Object permanence is one of the earliest signs of memory and reasoning. Around 4–7 months babies start tracking objects that move out of view. By 8–12 months they'll uncover a partly hidden toy and reach for it. By 18 months a toddler can follow more complex hide-and-find games, even when an object is moved more than once. This skill supports language, play and emotional security — including learning that when you leave the room, you'll come back.Every child arrives on their own timeline. A few weeks either side is typical. What matters is steady forward progress.
The Pinnacle way
If your toddler isn't searching for hidden objects, doesn't enjoy peek-a-boo, or seems not to notice when familiar people or toys disappear by around 12–18 months, a gentle developmental check is worthwhile — not a cause for alarm. A clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre under qualified clinician care. Learn more about object permanence and how child development therapy supports thinking and play skills.Trusted sources
Guidance aligns with CDC developmental milestone resources and the American Academy of Pediatrics' HealthyChildren parenting guidance on infant and toddler learning.Next step — if you'd like reassurance, book a developmental check or message the Pinnacle team on WhatsApp at +91 91001 81181.
This is general information, not a diagnosis — a clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre under qualified clinician care.
What to watch
By 12–18 months your toddler should search for hidden toys, look for a dropped object, and enjoy peek-a-boo. If they don't seem to notice when familiar people or toys disappear, a gentle developmental check is sensible.
Try this at home
Play peek-a-boo and simple hide-the-toy-under-a-cloth games. Let your toddler watch you hide it, then cheer when they find it — repetition builds the skill.
Trusted sources
Developed by SETU Consortium · Pinnacle Blooms Network · Last reviewed 2026-06-10 · reviewed every 540 days
This is general information, not a diagnosis. A clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre, under qualified clinician care.
Frequently asked
At what age does object permanence develop?
It usually begins to emerge around 8 months and is well established between 12 and 18 months. By the toddler years most children confidently search for hidden objects and enjoy hide-and-find games.
How can I tell my baby understands object permanence?
Watch for your child searching for a toy you've hidden under a cloth, looking for a dropped spoon, or laughing during peek-a-boo because they know you're still there. These are everyday signs the skill is developing.
Should I worry if my toddler doesn't search for hidden objects?
A few weeks' variation is normal. If by around 12–18 months your toddler doesn't search for hidden toys or notice when familiar people or objects disappear, a gentle developmental check is worthwhile for reassurance — it is not a cause for alarm.