CDC Says Crawling Isn’t Required Anymore — Here’s What Actually Changed

TL;DR

In February 2022, the CDC and AAP quietly revised their official “Learn the Signs. Act Early.” milestone checklists — the first major overhaul in about 20 years.
Crawling was removed entirely. It’s no longer listed as a milestone at any age, because too many typically developing babies skip it, scoot, roll, or go straight to standing.
The bar for every remaining milestone was raised from the 50th percentile to the 75th percentile — meaning a missed milestone is now a stronger, more actionable signal than it used to be.
New checkpoints were added at 15 months and 30 months, and a few milestones (like walking alone and rolling) shifted to slightly later ages.
BloomPath still recommends talking to your pediatrician if your baby isn’t attempting any form of independent movement by 12 months — crawling specifically just isn’t the test anymore.

Last Saturday morning at the park near our house, I sat next to a mom I’d met maybe twice before — I think her name was Jenny, baby in a stroller, coffee in hand, that particular look of a parent running on five hours of sleep. Her son was eight months old and doing this determined scoot-drag thing across the blanket, one leg tucked under him, never once going up on hands and knees. “He won’t crawl properly,” she said, not quite looking at me. “My sister’s baby was crawling at seven months. I keep googling it at 2am.”

I’ve been that mom googling at 2am. Years ago, when our daughter Luna was around that same age, I did the exact same thing — propped my phone above a nursing pillow, typing “baby not crawling normal or not” into a search bar that had clearly seen this question ten thousand times before. What I didn’t know then, and what most parents still don’t know now, is that the actual medical guidance on this changed. CDC quietly rewrote the rulebook in 2022, and crawling isn’t part of it anymore.

This is the kind of update BloomPath exists to translate — the official source is dense and buried three clicks deep on a government site, and nobody has time to parse a PDF at 2am with a baby on their chest.

This topic connects to our broader Child Development Milestones: The Complete Guide (0–6 Years) if you want the full 0-6 picture.

What Actually Changed in the 2022 CDC Milestone Update?

In February 2022, the CDC — working with the American Academy of Pediatrics — released a revised version of its “Learn the Signs. Act Early.” developmental milestone checklists. This wasn’t a minor tweak. It was the first substantial revision in roughly 20 years, and three changes matter most for parents of babies and toddlers.

First, crawling is gone. It no longer appears on any CDC milestone checklist, at any age. The official reasoning, according to CDC’s published key points, comes down to inconsistency: there’s no single agreed-upon definition of “crawling” (classic hands-and-knees, commando crawl, bum-scoot, bear crawl), the age range for it varies enormously even among typically developing babies, and — critically — plenty of healthy babies skip it altogether and move straight from sitting to pulling up to walking. A milestone that a meaningful chunk of typical babies never hit isn’t a useful screening tool, so it was cut.

Second, the bar moved from 50% to 75%. Under the old system, a milestone was listed at the age when about half of children could do it. That sounds reasonable until you realize it means roughly half of totally normal babies were “behind” on any given item, which is a recipe for needless panic. The new checklists only list a skill at an age once about 75% of children can do it. The idea, straight from CDC’s own documentation, is that a missed milestone should mean something — it should actually prompt a conversation with your pediatrician, not just a coin-flip level of normal variation.

Third, new checkpoints were added, and a few ages shifted. The checklists now include dedicated 15-month and 30-month checkups, filling gaps that used to leave big stretches with no formal checklist at all. Independent walking moved from the 12-month list to the 15-month list. Rolling moved from 4 months to 6 months. This isn’t because babies are developing later than they used to — it’s because the new 75% threshold pushed the “typical age” for these skills later on the chart.

Why Does It Matter That Crawling Was Removed?

It matters because crawling removal wasn’t really about crawling — it was about protecting parents (and doctors) from a pattern where an entirely normal baby got flagged, referred, and sent through an anxiety-inducing evaluation process for skipping a stage that was never developmentally mandatory in the first place.

Daniel Siegel’s work on the developing brain talks a lot about how much variability is baked into typical development — no two nervous systems build the exact same map at the exact same pace. Crawling is a great example: some babies crawl for two months and walk at 11 months. Some babies scoot on their bottom for six weeks and walk at 13 months. Some babies never crawl at all and walk at 12 months right on schedule. All three of those kids can be completely typical.

What actually matters more than crawling, according to pediatric physical therapists, is whether a baby is exploring some form of independent movement — reaching, rolling, scooting, pulling to stand, cruising along furniture — somewhere in that general window. It’s the absence of any attempt at mobility, not the absence of one specific style of it, that’s worth flagging.

How Do I Know If My Baby’s Movement Delay Is Actually a Concern?

Here’s the practical version, because “talk to your pediatrician about everything” isn’t useful advice on its own.

Bring it up at your next well-visit — you don’t need to panic-call — if any of these apply:

No independent movement attempts by 12 months. Not “no crawling” — no scooting, no rolling across a room, no pulling to stand, nothing. That’s the real threshold.
Not sitting without support by 9 months. Sitting tends to come before any locomotion, so a stall here is worth mentioning earlier.
Strong side preference before 12 months — always reaching, rolling, or bearing weight on one side only. This can be a sign worth a look, independent of the crawling question.
Loss of a skill your baby already had. If your baby was scooting confidently and then stopped for weeks, that regression matters more than a missed milestone ever would.
Low muscle tone or noticeable stiffness that a caregiver or you have flagged consistently, not just once.

What I’ve learned watching Luna’s development and reading the research obsessively in those early years is that the “does he seem interested in moving toward things” question is usually more useful than counting weeks against a chart. A baby who’s motivated — reaching for a toy just out of range, grunting with effort, trying five different ways to get somewhere — is doing the underlying work, even if the specific method looks nothing like a textbook crawl.

What Can I Do at Home to Support Gross Motor Development?

You don’t need a curriculum. A few things genuinely help, based on both pediatric PT guidance and what we did at home:

More floor time, less container time. Bouncers, swings, and even car seats used outside the car all limit the trial-and-error movement babies need. Floor time — even five extra minutes a few times a day — adds up.
Put things just out of reach. A toy six inches beyond where a baby can grab it easily is a better motivator than one directly in their hands.
Let them struggle a little before you rescue them. This one was hard for me. Watching Luna get frustrated trying to reach something and not immediately handing it to her felt counterintuitive, but that frustration-then-success loop is exactly how babies build the confidence to keep trying new movements.
Tummy time, but distributed. Short, frequent stretches beat one long miserable session. Even two minutes, four or five times a day, builds the neck and shoulder strength that underlies almost every gross motor milestone that comes next.
Skip the walker. Baby walkers with wheels are discouraged by pediatric guidance because they let babies “walk” using a completely different muscle pattern than actual walking uses, which can slow rather than speed up real progress.

Is It Bad If My Baby Skips Crawling Entirely and Goes Straight to Walking?

No — and this is worth saying plainly because it’s the exact fear that used to send parents into a spiral. A baby who sits well, pulls to stand, cruises along the couch, and then walks — without ever doing a classic hands-and-knees crawl — is following one of several completely typical paths. CDC’s removal of crawling from the checklist is essentially an official acknowledgment of something pediatric researchers had been saying for years: crawling was never a required rung on the ladder, just one common way to climb it.

If you’re the parent standing at the park doing that same 2am search I did years ago, the honest answer is: you’re probably fine, and if you’re not, the real red flags (no movement attempts at all, loss of a skill, strong asymmetry) will show up in ways that are much clearer than “hasn’t crawled yet.”

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Frequently Asked Questions

When did the CDC change the developmental milestone guidelines? The CDC and American Academy of Pediatrics released revised “Learn the Signs. Act Early.” milestone checklists in February 2022 — the first major update in about two decades.

Why did the CDC remove crawling from the milestone list? Because there’s no single consistent definition of crawling, the typical age range varies enormously, and a meaningful number of healthy babies skip it entirely and move straight to standing and walking. A skill that many typical babies never do isn’t a reliable screening milestone.

What replaced the 50% threshold for milestones? The new checklists list a skill at the age when about 75% of children can do it, instead of 50%. This means a missing milestone is now a more meaningful signal, intended to reduce unnecessary referrals while still catching real concerns earlier.

Should I still worry if my baby isn’t crawling by 9 or 10 months? Not on its own. Focus instead on whether your baby is attempting any independent movement — rolling, scooting, pulling to stand — somewhere in that general age range. Absence of movement attempts altogether is the more meaningful flag, not the absence of one specific crawling style.

What are the new age checkpoints added in the 2022 update? The CDC added dedicated milestone checklists at 15 months and 30 months, filling gaps that previously left long stretches without a formal checkpoint between visits.

Does Montessori philosophy say anything about crawling or gross motor development? Montessori practice emphasizes freedom of movement on the floor rather than containers like bouncers and swings, precisely because babies need unrestricted space to experiment with rolling, scooting, and pulling up at their own pace — which lines up closely with what pediatric physical therapists now recommend regardless of which specific movement style a baby lands on.

As an Amazon Associate, BloomPath earns from qualifying purchases — at no extra cost to you. We only recommend products we genuinely find useful.

Lovevery The Play Gym — A stage-based activity mat that grows with your baby through the exact “reach, roll, scoot, pull-up” window this article covers. We used ours until Luna outgrew tummy time entirely.
Good Inside by Dr. Becky Kennedy — Not a milestone book specifically, but the single best resource I’ve found for turning down the volume on comparison-driven parenting anxiety, which is really what “is my baby behind” questions are about underneath.

Want a simple way to log what your baby is actually doing — movement attempts, new skills, questions to bring to your pediatrician — instead of just anxiously scrolling forums at midnight? The BloomPath app has a milestone tracker built around this same evidence-based approach.

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