Crawling

When do babies start crawling?

Most babies crawl on all fours between seven and ten months. Almost always there are some weeks of belly crawling first, with the tummy still on the floor. The upper end of the window is generous: a baby who does not crawl until eleven or twelve months is still within range, as long as they have been getting around some other way.

The order matters more than the date. Crawling requires that your baby can hold their own trunk up, which is why it comes after sitting unsupported and never before it. If you want to know whether your baby is on track, do not look at the calendar — look at whether the earlier steps are there.

What comes before crawling

Crawling is not a single leap; it is the end of a chain. First the head has to be steady, then the trunk in sitting, then movement on the belly arrives. Only once a baby can push up from lying into a hands-and-knees position is crawling possible at all.

One in-between step unsettles a lot of parents: the baby gets up on hands and knees and rocks back and forth without going anywhere. That is not being stuck — it is balance being calibrated. It usually takes one to three weeks before it turns into movement.

And then it often starts backwards. Pushing with the arms is easier than pulling, so many babies travel the wrong way first, visibly frustrated as the toy gets further away. That sorts itself out too.

The variations, and why none of them is wrong

Classic cross-pattern crawling, where the right hand and left knee move together, is only one solution. Also common: belly crawling, bottom shuffling, the bear crawl on hands and feet with straight legs, rolling across the room, and asymmetric hybrids where one leg gets dragged.

All of it does the same job: your baby moves independently toward a goal. That is where the developmental step lies — in the intention and the sense of agency, not in the technique. A way of getting around that works for your baby is the right one.

One exception is worth attention. If one side of the body does markedly less work than the other for weeks — always the same leg dragged, always the same arm unused — then the issue is not the style but the asymmetry. That should be looked at.

Babies who never crawl

An estimated one baby in ten never crawls on all fours. They shuffle, belly crawl, or pull straight up on furniture and move from sitting to standing to walking. On average these babies do not walk later or walk less well than crawlers.

The reason this still unsettles so many parents is a persistent claim: that crawling is required to wire the two hemispheres of the brain together, and that babies who skip it run into reading or writing problems later. The claim is popular but not scientifically supported. There is no robust evidence that non-crawlers read worse.

What is true: crawling is excellent exercise for trunk strength, the shoulder girdle and coordinating the two sides of the body. A baby who does not crawl simply gets the same exercise elsewhere — climbing, pulling up, playing on hands and knees.

How to support crawling

Floor time is the only thing that reliably helps. A baby who spends a lot of awake time on a firm, level surface gets to belly crawling and crawling on their own. Carpet beats laminate because hands find purchase; very soft foam mats make it needlessly hard.

Conversely, equipment that holds a baby upright — walkers, door bouncers, long stretches in a high chair or bouncer — takes away exactly the time crawling emerges in. Paediatric bodies advise against baby walkers anyway, on safety grounds and because they interfere with the natural movement sequence.

Put interesting things just out of reach, not far away. The distance that triggers movement is small: an arm's length, not a room. And sit on the floor yourself — the most reliable incentive to move is you.

Bare feet beat socks. Socks slipping on a smooth floor are one of the most common reasons pulling up is hard at the next step.

What else changes once they crawl

As soon as a baby is mobile, their relationship to you changes. They can leave and return under their own steam for the first time, and many babies become clingier rather than more independent in exactly this phase — being able to go away makes checking back more important.

Practically it means the house has to be safe now. Sockets, stairs, cables, plants, anything below a metre. The best test is to crawl through the house yourself and see what is reachable at that height.