Are girls more likely to have gross motor delay?

One of the quietest worries parents carry: "Is my daughter more likely to be slow with crawling or walking?" Let's answer it plainly.

In short

No — girls are not meaningfully more likely to have gross motor delay. If anything, large developmental surveys suggest girls reach some early gross motor milestones (sitting, walking) very slightly earlier on average than boys, while boys show marginally higher rates of certain developmental concerns overall. But these are tiny group averages — they tell you almost nothing about your individual child. What matters far more than sex is whether your child is moving steadily through their own milestones and whether you have a niggling concern worth checking.

What the picture actually shows

Gross motor development — rolling, sitting, crawling, pulling to stand, walking — follows a wide but predictable window in every child. A few points worth holding onto:

• Sex differences are small and inconsistent. Some studies note girls walking a touch earlier; the overlap between boys and girls is enormous, so sex is a poor predictor for any one child.
• Other factors weigh more. Prematurity, low birth weight, opportunity to move freely, time on the tummy, and family movement patterns shape gross motor progress far more than whether a child is a boy or a girl.
• A delay is about the milestones, not the gender. A clinician looks at what your child is doing against the typical age range — not at statistics about boys versus girls.

When it's worth a developmental check

Reach out for a gentle review — for a girl or a boy — if your child:

• Is not holding their head steady by around 4 months
• Is not sitting with support by around 9 months
• Is not pulling to stand by around 12 months
• Is not walking by around 18 months
• Has lost a movement skill they previously had, or feels unusually stiff or floppy

These are signposts to look, not reasons to panic — many children simply move at their own pace.

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 quiz or a single milestone chart. With 2.5 billion+ data points and 25 million+ therapy sessions behind our approach, we look at your individual child, not a gender average. If movement is the question, our occupational therapy and physiotherapy teams can map exactly where your child stands and what helps next. Start anytime from our home page.

Trusted sources

World Health Organization guidance on the wide normal range of motor milestones; CDC developmental milestone guidance for parents; American Academy of Pediatrics resources on early movement and tummy time.

Next step — Curious where your daughter's movement stands today? Book a developmental check with a Pinnacle clinician.

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