When to worry about motor planning difficulties at 6–9 months

If you're watching your baby reach, roll and explore and wondering whether their movements should look smoother by now, that gentle attentiveness is exactly what helps a child thrive.

In short

At 6–9 months, "motor planning difficulties" — the brain's ability to plan and sequence a new movement — is not yet something that can be meaningfully diagnosed. Babies this age are still building the basic building blocks of movement, and there is enormous healthy variation in how quickly each one arrives. Rather than worrying about a label, this is the perfect age to gently observe and encourage movement — and to flag a few specific things to a clinician if you notice them.

What's actually appropriate to watch at 6–9 months

Motor planning (sometimes called praxis) becomes observable later, once a toddler is attempting purposeful, multi-step actions like stacking, feeding themselves or copying gestures. At 6–9 months we instead watch the foundations that motor planning will later build on. It's reasonable to mention to your paediatrician if, by around 9 months, your baby:

• Has not begun to sit with support or is very floppy or very stiff when held.
• Is not reaching for or grasping toys, or strongly favours one hand only (early hand preference can be a flag).
• Has lost a movement skill they clearly had before.
• Rarely brings hands to the middle, doesn't bear weight on legs when held, or shows very little spontaneous movement.

These are reasons for a calm developmental check, not alarm. Most variation at this age resolves naturally. A genuine concern about motor planning itself is something a clinician would explore around the toddler years, when planned, sequenced actions emerge.

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 or a single observation. For a baby this young, our clinicians focus on building your child's own movement baseline and reassuring you about typical variation. If foundations need gentle support, our occupational therapy team works through play that strengthens reaching, sitting and hand use. The goal is confidence and a clear picture — not a premature label.

Trusted sources

CDC developmental milestones and "Learn the Signs, Act Early" guidance for movement at 6–9 months; American Academy of Pediatrics developmental surveillance guidance; WHO motor development study windows.

Next step — Trust your watchfulness. Book a developmental check with a Pinnacle clinician for warm reassurance and an early, strengths-based baseline.

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