Crawling: Does Every Baby Need to Do It?

Few questions stress out parents of 8- and 9-month-olds quite like "is my baby crawling on time?" — closely followed by "is it bad that they're not crawling and just rolling everywhere?" The internet doesn't help; one site warns that skipping crawling causes reading problems, the next says it doesn't matter at all.

The honest answer is somewhere in between. Crawling isn't compulsory, and skipping it doesn't doom your child to anything. But the experiences of crawling do build useful capacities, and the foundation for crawling is laid by tummy time months earlier — so it's worth paying attention to even if your baby ends up taking a different route to mobility.

Healthbooq lets you log motor milestones alongside everything else and gives you a clear timeline for the health visitor reviews.

What Crawling Actually Develops

Standard four-point crawling — opposite hand and knee moving together — is more sophisticated than it looks. It requires:

• Bilateral coordination — the two sides of the brain working together in a reciprocal pattern.
• Shoulder, arm, and core strength to bear weight off the ground.
• Hip stability to alternate weight between sides.
• Visual-motor integration — looking at a target while moving toward it.
• Spatial planning — choosing a route, navigating obstacles, predicting distance.

Beyond the motor benefits, crawling is a baby's first independently navigated exploration of space. The reaching-for-something-just-out-of-reach experience drives early problem-solving in a way that being carried doesn't.

The research on whether skipping crawling causes any later difficulty has been done and re-done. The current consensus: no reliable evidence that babies who skip crawling have worse motor, reading, learning, or coordination outcomes later. Older claims linking the absence of crawling to specific learning difficulties have not been replicated in rigorous studies. The Bayley scales of infant development don't even include crawling as a marker for this reason.

Typical Timing

The average for the start of crawling is around 8–9 months, with a typical range of 7–11 months. Some early-crawlers start at 6 months; some late-crawlers don't start until 12+ months and turn out to be fine.

Patterns of moving across the floor that all count as "mobility":

• Classic four-point crawl — alternating opposite hand and knee. Most common.
• Commando / belly crawl — dragging along on the tummy with arms doing most of the work.
• Bear crawl — hands and feet rather than hands and knees, bottom in the air.
• Asymmetric crawl — one leg out to the side, one tucked under.
• Crab crawl — moving sideways or even backwards initially. Babies often crawl backward before forward; the brain hasn't yet sorted out the direction problem.
• Rolling everywhere — some babies cover impressive distances by rolling and never bother with hands and knees.
• Bottom-shuffling — sitting upright, scooting forward on the bottom, often with one leg providing propulsion.

All of these are valid mobility strategies. Many babies cycle through several before settling.

Bottom-Shuffling: A Family Pattern

Bottom-shuffling deserves its own paragraph because it confuses parents. A bottom-shuffler typically:

• Doesn't crawl on hands and knees, ever.
• Sits upright early and stably, often before 6 months.
• Hates tummy time more than other babies (so doesn't develop the prone-position strength).
• Walks later than crawlers — often 16–18 months, sometimes later.
• Has at least one parent or close relative who was a bottom-shuffler.

The whole pattern runs strongly in families and is tied to a different genetic predisposition for muscle tone and movement style. A bottom-shuffler who walks at 17 months is on a normal trajectory for a bottom-shuffler. They are not behind; they are on a different curve.

If a child is bottom-shuffling, the health visitor will track milestones over time but generally won't intervene unless the broader picture (muscle tone, social development, language) is also lagging.

The Tummy Time Connection

Tummy time is the single biggest factor in how, when, and how well a baby crawls.

Why: the muscles needed to push up onto hands and knees — neck, shoulder, upper back, arms, core — are developed almost exclusively in the prone position. A baby who spends most of their floor time on their back gets very limited training of these muscles.

Practical guidelines:

• From day 1 of life, brief tummy time on a parent's chest (skin-to-skin or with the parent semi-reclined). Babies tolerate this much better than a flat hard floor.
• By 2–3 months, a few minutes on the floor at a time, on a firm flat surface or play mat.
• By 4 months, working up to about 30 minutes total per day, broken across several sessions.
• By 6 months, the baby will often resist being placed any other way during play.

If your baby hates tummy time:

• Start with very brief sessions (30 seconds, a minute) and build.
• Try on your chest first, then on the floor.
• Lie down at their level so they can see you.
• Place a high-contrast toy or mirror just out of reach.
• Use a rolled towel under the chest for support.
• Try after a nappy change but not after a feed (tummy on a full stomach can cause discomfort and reflux).

It is never too late to increase tummy time. A 5-month-old who has had limited tummy time still benefits.

When Not Crawling Is Worth Mentioning

Variation is large and most concerns turn out to be normal. Worth a chat with the health visitor or GP if your baby:

• Isn't moving independently in any way — not crawling, rolling, bottom-shuffling, or cruising — by 10–12 months.
• Doesn't push up on their arms during tummy time by 4–5 months.
• Doesn't sit unsupported by 9 months.
• Doesn't bear weight on their legs when held in a standing position by 9 months.
• Has noticeably floppy muscle tone through the body, or one side notably stiffer/floppier than the other.
• Has lost a motor skill they previously had.
• Has any other developmental concerns alongside the motor pattern (poor eye contact, no babbling at 12 months, no response to name).
• Doesn't seem to use both hands equally — strong hand preference before age 1 can suggest weakness on the non-preferred side.

These would prompt a referral to community paediatrics or paediatric physiotherapy. Most babies referred turn out to be fine; some have conditions (mild hypotonia, hip dysplasia, cerebral palsy variants) where early intervention helps.

Setting Up the Floor for Crawling

If you want to encourage crawling, the environment matters more than any specific exercise:

• Lots of floor time on a firm surface. Soft sofas and squashy mats reduce the proprioceptive feedback the baby needs to organise movement.
• Minimise time in containers — bouncers, jumperoos, walkers, stationary activity centres. These keep babies upright but don't give them the floor experience that crawling needs. Aim for less than 30 minutes total a day in containers from 6 months on.
• Place toys just out of reach. The motivation to move comes from wanting something. A toy 60 cm away is the perfect crawling motivator at the right stage.
• Childproof at floor level early. Once they're moving, your house needs to be ready.
• Get down on the floor with them. A parent at their level is the most reliable target a young baby has.

A Note on Walkers

Sit-in baby walkers (the wheeled frame variety) are not recommended. Multiple national paediatric bodies advise against them. Reasons:

• Significant injury risk — falls down stairs, into water, into hot surfaces.
• Held in a posture that bypasses the natural progression through sitting → crawling → cruising → walking.
• Don't actually accelerate independent walking and may slightly delay it.
• Encourage tip-toe weight bearing, which is a less efficient pattern.

If you want something to support standing practice, a stationary activity centre is safer (no wheels), but should still be limited.

Crawling isn't a compulsory milestone — some babies skip it entirely and walk straight from sitting or standing without long-term consequence. The old idea that skipping crawling causes later learning problems hasn't held up to research scrutiny. Still, crawling does build genuine motor and cognitive benefits, and tummy time in the early months is the strongest predictor of efficient crawling later. Bottom-shuffling is a normal alternative — bottom-shufflers often walk later (16–18 months) and that's also fine. Worth a check-up if a baby isn't moving independently in any way by 12 months, isn't bearing weight, or has noticeably low muscle tone.