What causes hitting others in young children?

When a small child hits, it almost never means they are unkind — it usually means they have run out of other ways to say what they feel.

In short

Hitting in young children is most often a sign of an immature brain trying to manage a big feeling — frustration, tiredness, over-stimulation, or wanting something they cannot yet ask for in words. Between roughly 12 months and 5 years, the parts of the brain that handle impulse control and language are still under construction, so the body acts before words can. It is a developmental stage, not a character flaw — and it almost always softens as language and self-regulation grow.

Why young children hit

Common, normal drivers include:

• Not enough words yet — a child who cannot say "I wanted that" or "I'm done" may hit instead. Hitting often peaks when understanding outpaces speaking.
• Big emotions, small brakes — the impulse-control centres of the brain mature slowly through early childhood, so frustration spills straight into action.
• Overwhelm — tiredness, hunger, too much noise, light or crowd can tip a child over the edge.
• Testing cause and effect — toddlers experiment: what happens when I do this?
• Seeking connection or a reaction — even a big reaction can feel rewarding to a child who wants attention.
• Copying — children mirror what they see at home, in play or on screens.

When to look a little closer

Most hitting fades with calm, consistent guidance. Consider a developmental check if hitting is intense, frequent and not easing with age, if it comes with very limited speech or understanding, strong sensory reactions, difficulty connecting with others, or if your child seems unable to calm even with support. These point to areas — like language, sensory processing or emotional regulation — where a little early help goes a long way.

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 an app. Across 70+ centres, our team looks at the whole child — communication, emotion and sensory needs together — so we support the root, not just the behaviour. If words are the missing piece, speech therapy helps; if regulation and connection are, occupational therapy and a tailored plan begin at your first visit.

Trusted sources

American Academy of Pediatrics guidance on toddler behaviour and discipline (healthychildren.org); WHO Nurturing Care Framework on early development and responsive caregiving.

Next step — Worried the hitting isn't settling? A Pinnacle clinician can gently check where your child stands.

This is general information, not a diagnosis — individual assessment and diagnosis require an appropriately qualified healthcare professional.