When Do Babies Start Crawling?

The short answer

Many babies start crawling around 7–10 months, but the timing and the way they move vary. Some belly-crawl, scoot on their bottoms or skip hands-and-knees crawling altogether. Not crawling at nine months is not, by itself, a sign of a developmental problem.

In this guide · 11 sections

Keep in mind

Crawling often develops around 7–10 months, not by a fixed deadline.
Belly-crawling, bottom-scooting and skipping classic crawling can occur.
Classic crawling is not a required milestone on the CDC nine-month checklist.
Safe floor play helps; lost skills or persistent one-sided movement deserve medical discussion.

When does crawling usually begin?

It can be exciting to notice your baby move toward a toy on the floor for the first time. Many babies learn to crawl between seven and ten months, but this is not a deadline. The AAP describes it as a common developmental window. Some babies belly-crawl earlier while others find different ways to move.

If your nine-month-old is not yet moving on hands and knees, that fact alone does not tell us their development is delayed. How they get into sitting, reach for toys and use both sides of their body also matters.

What movements might come before crawling?

During tummy time, your baby may push up on their arms, shift their weight sideways while reaching or turn in a circle. They might rock on hands and knees for a while without going forward. These movements need not appear in the same order for every baby.

If you place a favorite toy just ahead, your baby may push backward before moving toward it. That is not a failure; they are discovering how their body moves. There is no required set of preparatory motions.

Does every baby crawl on hands and knees?

No. While classic crawling involves hands and knees, some babies commando-crawl with their bellies near the floor or scoot on their bottoms. Rolling toward a destination is another way to explore movement. The AAP notes that some babies skip classic crawling.

Your baby does not have to move through every style in a set sequence. More useful observations are whether arms and legs work together, movement becomes more varied over time and other skills continue to develop.

Is not crawling at nine months a concern?

Not on its own. The CDC's nine-month milestones include sitting without support, getting into a sitting position and transferring objects between hands. Classic crawling is not a required milestone on that checklist.

That list is a guide, not a diagnostic test. If you are concerned about several skills or your baby loses a movement they had learned, speak with your child's pediatrician. For babies born prematurely, corrected age may matter in developmental assessment.

Will skipping crawling affect later learning?

There is no scientific basis for claiming every baby must crawl in the classic way or they will later struggle with reading or learning. The AAP explains that skipping crawling alone does not predict reading difficulties.

It would be unfair to sum up development by one movement. Mobility, communication, play, curiosity and gaining new skills all matter. You do not need to measure your baby against rigid online timetables.

What can you try today?

While your baby is awake and you are nearby, provide a clean, flat, nonslip space on the floor. Place a favorite toy just beyond easy reach and give them a chance to reach toward it. Rolling, sliding or finding another path can all be part of the game.

You do not need to force your baby onto their knees, pull them up by the hands or require a certain number of repetitions. Take a break if they do not want to try. Short, enjoyable opportunities to move matter more than meeting a crawling date.

Preparing your home for a mobile baby

Even before crawling, your baby could roll unexpectedly or reach a new spot. Clear small objects off the floor, put proper safety gates at stairs, anchor furniture that could tip and store medications and cleaning products locked away.

Beds, couches and changing tables can be fall hazards. Supervised play on a safe floor allows your baby room to explore. Wheeled baby walkers are not needed to teach crawling.

When should you speak with a pediatrician?

Ask for assessment if your baby consistently uses one side less, noticeably drags an arm or leg, moves very little or loses skills they previously had. You do not need to wait until a particular month to raise these concerns.

If you are worried about sitting or other motor skills around nine months, share that at a checkup. Your clinician can consider developmental screening and support if needed. Crawling alone cannot provide a diagnosis; all the changes you have noticed are relevant.

When to seek support

Some signs need emergency help; other concerns can be discussed with your child’s healthcare team.

Loss of movement or other skills your baby had previously acquired.
Consistent, noticeably reduced use of an arm or leg.
Ongoing concerns about sitting, movement or overall motor development.

Sources used for this guide

English editorial review: October 17, 2026

The English text and regional guidance have been checked editorially. This is not an individual clinical assessment.

Luluna provides general parenting information. It does not diagnose conditions or replace your child’s healthcare professional.

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