Early signs of autism in toddlers — and what to do next in Minnesota

What does "early signs" actually mean?

Before the list, the sentence that matters most: signs mean ask, not autism.

Every item below is something plenty of non-autistic toddlers also do, or don't do, on their own schedule. Development isn't a checklist that ticks over on a birthday. A sign is not a diagnosis, a cluster of signs is not a diagnosis, and nothing on this page — or any page — can tell you whether your child is autistic. Only a qualified evaluator can do that, after spending real time with your child.

What a sign is: a reason to ask someone qualified to take a look. That's the entire job of this article.

It also helps to know how the milestones below are calibrated. Since its 2022 revision, the CDC's milestone checklists describe what most children — 75% or more — can do by a given age. They're deliberately not the average. So a missed milestone isn't "your child is behind the middle of the pack"; it's "most children this age are already doing this," which is a sharper signal and a fairer one.

What are the milestones, by age?

These are the social-communication milestones that matter most for autism specifically. It's a selection, not the full checklist — CDC publishes the complete list for each age, and the Milestone Tracker app is genuinely good if you'd rather track it on your phone.

Which signs point toward autism in particular?

Most developmental checklists mix motor skills, speech, and social skills together. For autism, one thread runs through nearly every early sign: sharing attention with another person.

Watch for the back-and-forth, not the skill in isolation:

• Pointing to share, not just to get. Pointing at the cracker they want is a request. Pointing at a dog and then looking at your face to make sure you saw it too — that's sharing. The second one is the one that matters here.
• Looking to you for information. A toddler who hears a strange noise usually checks your face to learn whether to be worried. Not doing that is more meaningful than not talking.
• Responding to their name. Consistently not turning when a familiar voice says their name — with hearing ruled out — is one of the earlier signals.
• Back-and-forth, in whatever form. Babble for babble, gesture for gesture, word for word. The turn-taking is the point; the words are just one way to do it.
• A loss of skills, at any age. A child who had words or waves and stopped is the one situation on this page that warrants a call to your pediatrician promptly rather than at the next visit.

You'll also hear about repetitive movements — hand-flapping, lining things up, spinning wheels. They're part of the diagnostic picture, but they're a poor solo signal: many non-autistic toddlers do all of these, and stimming on its own tells you far less than the attention-sharing thread does.

What if my child does some of these and not others?

That's most children. Toddlers develop unevenly by default — a child can be early on words and late on gestures, or the reverse, and be entirely typical.

So resist the arithmetic. There's no threshold here, no "three or more means autism." Counting signs is exactly the thing this page is asking you not to do, which is why we haven't given you boxes to tick. A pattern across several months, seen by someone trained to see it, is worth vastly more than any tally you or we could produce from a list.

And hold one alternative explanation open the whole way through: hearing. A toddler who doesn't respond to their name, doesn't follow directions, and is late to talk may be a toddler who isn't hearing you well. Any decent evaluation checks that first, and so should you.

What do you actually do next, in Minnesota?

Here's what's genuinely good about being in this state: you do not need a diagnosis, a referral, or a dollar to start.

1. Refer your child to Help Me Grow Minnesota — today, yourself. It's free, it's the state's front door for developmental concerns, and it takes referrals directly from parents with no diagnosis required. Under 3, that's early-intervention services through Part C. From 3 to 5, it's preschool special education through your school district. You do not need anyone's permission to make this call.
2. Ask your pediatrician for a developmental screening — and use the word "screening." The American Academy of Pediatrics recommends developmental screening at 9, 18, and 30 months, plus autism-specific screening at 18 and 24 months. Those are recommendations, not guarantees your clinic followed them. Asking directly is how you find out. If you've already been handed an M-CHAT and you're staring at the result, we walk through what it means and what comes next.
3. Write down what you see, with dates. Two lines in your phone's notes app — what happened, when. Evaluators are asking about patterns over months, and memory under stress is unreliable. This is the single most useful thing you can do between now and an appointment.
4. Start the diagnostic path if the screening flags something. A screening isn't a diagnosis; it's a signal that a full evaluation is worth booking. Our diagnosis guide covers who can evaluate in Minnesota, what the appointment is like, and how long each step really takes.

Notice that steps 1 and 2 can happen this week, in parallel, and neither one commits you to anything.

Why does acting early matter?

Because the developing brain is most responsive to support when it's youngest — that's the whole premise behind early intervention, and it's why Minnesota's benefit for autism treatment has the word "Early" sitting first in its name.

Let's be careful about what that does and doesn't mean. Early support isn't a cure, and nobody can promise you a particular outcome for a particular child. What the evidence supports is narrower and still worth a great deal: children who get individualized support sooner tend to build communication and daily-living skills that are harder to build later.

There's a second reason, and it's more practical. Every step here has a queue — the screening, the evaluation, the CMDE, the coverage paperwork through your county. Those queues run in months. Starting the free, no-diagnosis-needed steps now means the slow parts are already moving while you're still working out what's going on.

If it turns out your child is autistic, the path from here runs through a diagnosis, then coverage, then a CMDE, then therapy — and we've laid that whole route out. If it turns out they're not, you'll have lost an appointment and gained an answer.

Frequently asked questions

• My child does some of these but not others. Is that autism?

  We can't tell you that, and neither can a checklist — only a qualified evaluator can. Toddlers develop unevenly, and missing a milestone has many possible explanations, including hearing. What a mixed picture means is that it's worth asking someone qualified to look. That's true whether the answer turns out to be autism or not.

• My child talks. Doesn't that rule out autism?

  No. Speech and social communication are different things. A child can have plenty of words and still find it hard to share attention, take conversational turns, or read another child's cues. Autism is about how communication is used with people, not word count alone.

• Do I need a referral or a diagnosis to get help in Minnesota?

  No. Help Me Grow Minnesota takes referrals directly from parents, at no cost, with no diagnosis required. If your child is under 3, that's early intervention through Part C; from 3 to 5, it's preschool special education through your school district. You can refer your own child today.

• Should I wait and see?

  Waiting costs you the one thing you can't get back, which is time in the window when skills form fastest. Asking has no downside: if development is on track, you've lost one appointment. If it isn't, you've started early. Nobody regrets asking a few months too soon.

If you're worried about your own toddler and don't know where to start, call or message us — we'll point you to the right first step, whether or not you ever enroll with us. We serve children ages 2–12, and we'd rather you get an answer than get us.

Related reading: What is autism? · Getting an autism diagnosis in Minnesota · What a CMDE is, and why we don't do ours in-house · The parent's glossary