Early Signs of Autism in Babies: What to Look For at 6, 9 and 12 Months

Autism cannot be formally diagnosed in a baby under twelve months. What can happen in the first year is that a parent begins to notice something — less eye contact than they expected, fewer smiles coming back, no turn of the head when they call their baby’s name. This guide walks through the early signs of autism in babies at 6, 9 and 12 months, the far more likely explanations for each one, and the calm next steps if the feeling doesn’t settle.

Parents bring us these quiet questions all the time, and most apologise for asking. Please don’t. Noticing is not diagnosing, and most of the babies we meet because of a worry like yours are simply moving at their own pace.

If your child is already past their first birthday, our guide to the early signs of autism in toddlers will fit you better. And if autism is already part of your family’s story, our autism support for children in Multan begins with your child exactly as they are.

Can autism be diagnosed in a baby under 12 months?

No. Autism is identified by watching patterns of social communication and behaviour hold steady over time and across different situations, and a baby under one has not had time to show that. Early differences can appear in the first year, but at this age they are signals to keep watching — never proof.

This matters because babies develop unevenly. A baby pouring everything into learning to sit or crawl often lets social skills wait a few weeks, then catches up in a rush. One sleepy afternoon of not answering to their name is not information. Six weeks of the same pattern, across different moods, rooms and times of day, is worth writing down.

And to say it plainly: autism is not a tragedy or something broken. Autistic children think, play and communicate in their own valid ways. Looking closely at your baby is not hunting for faults — it is learning this particular child.

What are the early signs of autism in babies?

The early signs of autism in babies sit mostly in social communication — the back-and-forth between a baby and the people who love them. The areas parents ask us about most are eye contact, social smiling, responding to their name, babbling and copying, early gestures, and shared attention. Plenty of babies show one or two of these and are not autistic.

Does my baby look at faces less than other babies?

Babies are usually drawn to faces, especially yours — locking eyes during feeds, following you as you move around the room. Some parents notice their baby looks at faces less, prefers objects, lights or patterns, or glances up only briefly.

• Looking at faces less often than you would expect
• Preferring to gaze at objects, hands or moving things over people
• Rarely following your eyes towards what you are looking at

Is my baby smiling back at me?

Somewhere around six to eight weeks, most babies start smiling at people rather than only when they are comfortable — a smile that lights up in answer to your face and voice. Over the months this usually grows into giggles and a clear sense of enjoying you back.

• Fewer warm, responsive smiles aimed directly at a person
• Less of that lit-up, back-and-forth delight during play
• Facial expressions that are harder to read

Temperament counts for a lot here. Serious, watchful, slow-to-warm babies are common, and many become extremely sociable toddlers.

Why doesn’t my baby turn when I call their name?

By around nine to twelve months, most babies turn towards a familiar voice saying their name. A baby who often doesn’t — when you know they are calm, not absorbed in something, and can hear — is worth noting. We have written a companion guide on this one sign: my child isn’t responding to their name.

Please hear this clearly, because it is the single most useful sentence on this page: the most common reason a baby doesn’t respond to their name is hearing, not autism. Glue ear — fluid sitting behind the eardrum — is very common in babies, often follows colds, causes no pain, and quietly muffles sound. It is usually treatable and very easily missed.

Is my baby babbling and copying me?

Babbling is a baby’s practice run at conversation. Most babies move from cooing to repeated strings — ba-ba, da-da, ma-ma — during the second half of the first year, and start copying what they see and hear: your sounds, your smile, a tongue poking out, a clap.

• Little or no babbling by around nine to ten months
• Rarely copying sounds, expressions or simple actions
• Making sounds mostly alone rather than towards a person

Quiet babbling is not automatically an autism sign. It is also one of the first things affected by reduced hearing, and it is where speech delay and autism can look alike early on — we untangle that in speech delay vs autism.

Should my baby be pointing, waving or reaching by now?

Towards the end of the first year, babies start using their bodies to communicate before words arrive — arms up to be lifted, waving, pushing away, and eventually pointing at something interesting.

• Few early gestures such as reaching up, waving or pushing away
• Not yet pointing — this often appears around the first birthday, so its absence at ten months is not concerning on its own

What is joint attention, and why do therapists watch for it?

Joint attention is the moment a baby looks at something, then looks back at you, as if to ask “are you seeing this too?”. It is the beginning of sharing a world, and it is one of the things we watch most closely, because it usually arrives before words do. Some parents notice fewer of these three-way moments between baby, object and parent.

• Rarely looking back to check you are in the moment with them
• Showing or bringing you things less often just to share, rather than to get help

If you would like to understand this skill properly — and how to build it in ordinary play — we have explained it in what is joint attention?

What about repetitive movements or strong reactions to sound and touch?

Some parents mention strong reactions to noise, textures or bright light, very repetitive movements such as hand-flapping or stiffening, or a baby who is content alone for long stretches. On their own, none of these mean autism — most are ordinary baby variety.

What should my baby be doing at 6, 9 and 12 months?

The ladder below is the rough order in which social communication usually appears. Use it the way we do: not as a test your baby passes or fails, but as a way of seeing which rungs are already there, and which one you can play towards this week.

My baby could do something and now can’t — does that matter?

Yes. A skill that arrives and then goes is the one early sign we ask parents not to wait on. If your baby was babbling and has gone quiet, was waving and has stopped, or was smiling socially and no longer does, ask your doctor for a review now rather than watching another month. Losing a skill is uncommon, and it is always worth checking.

This is not a reason to panic. It is simply the one situation where the usual advice — give it time, every child is different — is the wrong advice. Bring dates if you can: roughly when the skill appeared, when it faded, and anything happening around then, such as an ear infection.

Does any of this mean my baby is autistic?

No — not on its own, and usually not at all. If your baby shows one, two or even several of the things above, it does not mean they are autistic. Here is why we can say that so confidently:

• Development is uneven. A quiet social month is often followed by a burst of connection.
• Temperament is real. Watchful, cautious babies are normal, and often less demonstrative early on.
• Hearing is the usual culprit. Reduced response to name and voice is far more often about ears — and ears are treatable.
• Autistic traits overlap with ordinary baby behaviour. Loving lights, repeating movements, lining things up — plenty of babies do all of this.
• Early signs are soft. Even researchers talk in terms of possibility at this age, never certainty.

It is also worth putting down anything you have been carrying about the cause. Autism is not caused by anything you did, by a shock in pregnancy, by working mothers, or by vaccines — we go through the beliefs we hear most often in what causes autism: myths and facts.

So if noticing gives no diagnosis, why do it? Because noticing lets you respond — and warm, responsive interaction helps every baby, autistic or not. Nothing we would suggest at this age carries a risk or a label.

What can I do at home, starting tomorrow morning?

None of this needs equipment or a programme. In our clinic we coach parents in exactly these everyday moments, because you are, by a long way, the most important person in your baby’s day.

Follow your baby’s lead

Watch what catches your baby’s eye and join them there. If they are staring at the ceiling fan, look at it together, name it, share the wonder. Meeting your baby in their interest builds far more connection than pulling them into yours.

Make ordinary moments sing

Faces, singsong voices, peekaboo, gentle tickles, narrating the nappy change out loud. Get down to your baby’s eye level, then pause — the pause is the part most of us skip, and it is where your baby finds room to answer.

Build the back-and-forth

When your baby coos, coo back. When they wave an arm, wave too. When they bang a spoon, bang one with them. These turn-taking games teach the rhythm of conversation long before any words arrive — and they matter more than any screen, which is why unhurried, device-free time together is worth protecting.

Keep gentle notes

Rather than worrying in loops, jot down what you notice and when. A few weeks of notes is far more useful — to you and to any professional — than one anxious afternoon. As your baby moves towards the second year, our is my child autistic? checklist puts the same questions in a written form you can work through calmly.

What parents tell us, in their own words

Most families who come to us describe this in Urdu long before anyone says the word autism (آٹزم). If one of these sentences sounds like yours, you are in very ordinary company:

• بچہ نام پر متوجہ نہیں ہوتا — bacha naam par mutawajjah nahi hota — “he doesn’t turn when we call him.”
• آنکھ نہیں ملاتا — aankh nahi milata — “he doesn’t meet our eyes.”
• ہنستا نہیں، جواب نہیں دیتا — hansta nahi, jawab nahi deta — “he doesn’t laugh back or answer us.”
• ابھی چھوٹا ہے، بول جائے گا — abhi chhota hai, bol jayega — “he’s small, he’ll talk” — the sentence relatives offer most often.

That last one is usually right. It is still worth a hearing check, because one appointment rules out the most common explanation of all. We work with families in Urdu, Saraiki, Punjabi or English, so you never have to translate your worry into a second language first.

When should we ask for help, and who do we ask first?

Reaching out is not an overreaction and it does not set anything frightening in motion. It means one more knowledgeable person is looking alongside you. Here is the order we would suggest.

Start with hearing

If your baby often doesn’t respond to sound, voices or their name, a hearing check is almost always the right first step. It is quick, painless, and it rules in or out the most common explanation before anything else is considered. Our guide to the signs of a hearing problem in children explains what to watch for and what a test involves.

Then talk to someone who knows babies

Your paediatrician or family doctor is a good early port of call, especially if a skill has been lost, or your baby is feeding poorly or seems unusually stiff or floppy. Trust yourself here — a good professional will take your observations seriously without alarming you.

Then, if the pattern holds, a developmental review

If several signs persist over weeks, a warm, play-based developmental assessment gives you clarity and practical next steps whatever the outcome. It is never about labelling a baby. It is about understanding this one.

What actually happens when you bring a baby to us

We do not test a baby. We sit on the floor and watch the two of you play, and we are looking for back-and-forth more than anything else: does your baby check in with your face, do they answer a sound with a sound, do they let you into their game. We ask what they were doing three months ago, and about colds, ear infections and any hearing test already done.

Then we tell you plainly what we see, including when we see nothing that concerns us. If hearing has not been checked, we send you for that first. If a skill has been lost, if your baby does not respond to sound at all, or if there are feeding or movement difficulties, we refer you to a paediatrician rather than start therapy. With a baby under one, the honest work is parent coaching in your own routines, not sessions for the baby.

Wherever you are, you are welcome to talk to us — in person in Model Town, Multan, or online. If you would like a calm, no-pressure conversation, please get in touch. You do not need answers or a diagnosis first; bring the questions and we will look at them with you.

And whatever else you take from this page, take this: your baby has a parent who pays close, loving attention. That attention is already doing good.