When should a child develop object permanence?

That moment your baby hunts for a toy you've hidden under a cloth — that's a quiet milestone of thinking, not just play.

In short

Object permanence — knowing that things still exist even when they're out of sight — begins to emerge around 8 months and is usually well established by 12–18 months. Most toddlers can find a fully hidden object by their first birthday, and enjoy peek-a-boo and hide-and-find games soon after. It's a normal, gradual unfolding, so a few weeks either way is perfectly typical.

How it unfolds

• 6–8 months — your baby starts to look for a partly hidden toy, or for one they just dropped.
• 8–12 months — they search for a fully hidden object, and love peek-a-boo because they now expect your face to return.
• 12–18 months — they remember where something was hidden even after a short delay, and may search in more than one place.

Object permanence is a foundation for memory, problem-solving and later language — it's how a child learns that words and people are real even when not in view.

The science

This skill reflects developing working memory and the understanding that the world is stable and predictable. It's why a baby who once forgot a hidden toy will, months later, lift the cloth with confidence.

When to gently check in

If by around 15–18 months your toddler shows no interest in finding hidden objects, doesn't enjoy peek-a-boo style games, or this sits alongside other concerns about play, gestures or words, a friendly developmental check is worthwhile — early and reassuring, never alarming.

The Pinnacle way

A clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre under qualified clinician care — never from a web page. We can map your child's cognitive and play milestones and, where helpful, support them through occupational therapy.

Trusted sources

Guided by CDC developmental milestone guidance and AAP/HealthyChildren resources on infant and toddler cognitive development.

Next step — if you'd like reassurance or a simple developmental check, message our team on WhatsApp at +91 91001 81181 to book a screen.

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.