When should babies start pointing?

Declarative pointing, used to share interest rather than request something, can emerge as early as 7 to 8 months, with most babies pointing consistently by 9 to 11 months. The clinical expectation is that pointing is present by 12 months. The joint attention window closes at 11 months, and absence at 12 months is a major clinical flag on the M-CHAT-R/F autism screening tool.

What's the difference between imperative and declarative pointing?

Imperative pointing is pointing to request something (e.g., pointing at a cup because the baby wants milk). This develops earlier. Declarative pointing is pointing to share interest (e.g., pointing at a dog, then looking back at you to see if you're looking too). This 'sharing and checking' behavior is the critical joint attention milestone assessed for developmental concerns. Absent declarative pointing is the flag.

Could not pointing be a sign of autism?

Yes. Absent declarative pointing by 12 months is the single strongest behavioral predictor of autism spectrum disorder in the first year. It is one of the primary items on the M-CHAT-R/F autism screening tool used at 18 and 24 months. While not a diagnosis itself, an 18-month-old who isn't pointing warrants prompt evaluation by a pediatrician and a referral to a developmental specialist.

18-Month-Old Not Pointing? This Is a Primary M-CHAT Flag

Q: Is it normal for an 18-month-old not to point?

No, an 18-month-old who is not pointing is 6 months past the clinical flag. This warrants immediate pediatric evaluation. Absent declarative pointing at 12 months is the single strongest behavioral predictor of autism spectrum disorder in the first year of life. At 18 months, this is a significant and urgent concern, and the M-CHAT-R/F screening at the 18-month well-child visit specifically asks about pointing for this reason.

With First Son, I didn't know to watch for pointing. Nobody told me it was significant. It wasn't until I was preparing for Second Son that I read Baron-Cohen's 1992 CHAT study, the M-CHAT-R/F items, and the joint attention literature. Pointing kept coming up as the single strongest behavioral predictor of autism in the first year.

I went back and thought about First Son at 12 months. I couldn't remember whether he pointed. I hadn't known to watch for it. That's the problem Scout is designed to solve, you know what to watch for before the window closes, not after. If you're reading this about an 18-month-old, you're past that initial window, but the next step is clear.

What Counts as Pointing? (Declarative vs. Imperative)

There are two kinds of pointing, and only one of them is the milestone that matters for developmental screening. Here's the distinction:

Imperative pointing (not the screening signal)

The baby points to request something. "I want that cookie." "Up." The purpose is to get something. Imperative pointing is a communicative gesture and is developmentally positive, but it is not the autism screening signal. It develops earlier (sometimes as young as 8 to 9 months) and reflects motivation to obtain, not to share.

Declarative pointing (the milestone)

The baby points to share interest with you. "Look at that cool dog!" The baby points, then looks back at you to see your reaction, a behavior called 'gaze checking.' This sharing-and-checking behavior is the joint attention milestone. Declarative pointing absent at 12 months is the clinical concern because it shows a reduced drive to share experiences with others.

The Window: Where Does an 18-Month-Old Sit?

Joint attention / pointing window (CDC/AAP sourced)

Opens: ~7 months (Week 30) · Peak: ~8 months (Week 34) · Closes: 11 months (Week 47)
Clinical flag: No pointing by 12 months, primary item on the M-CHAT-R/F

At 18 months, your child is 6 months past the clinical flag. This isn't a 'wait and see' situation. This is a 'call the pediatrician' situation.

At 18 months without pointing: act now

Don't wait. Call your pediatrician this week and clearly state: "My 18-month-old is not pointing to share interest with me. They're also not looking back at me after pointing. I want a developmental evaluation." The pediatrician will likely administer the M-CHAT-R/F (if they haven't already) and refer to a developmental specialist for a comprehensive assessment.

Absent declarative pointing by 12 months is the single strongest behavioral predictor of autism spectrum disorder in the first year of life, this is well-documented in research by Baron-Cohen, Carpenter, and subsequent replications. At 18 months, this is an urgent concern. Early intervention improves outcomes.

What a Developmental Evaluation Looks For

The M-CHAT-R/F is a 20-item questionnaire that flags a child as 'low risk,' 'medium risk,' or 'high risk' for autism spectrum disorder. It's a screening tool, not a diagnosis. A high-risk score warrants immediate referral for a diagnostic evaluation. Pointing is a primary item on this screen because of its predictive power.

A comprehensive developmental evaluation by a specialist (e.g., developmental pediatrician, child psychologist) will look at:

Joint attention: Does the child follow your gaze, look at what you're pointing at, and check back with you to ensure shared interest?
Language and communication: Beyond pointing, are there other delays (e.g., few words, no two-word combinations, limited babbling)?
Social reciprocity: Does the child initiate social interaction, respond to social bids, share emotions, make eye contact?
Repetitive behaviors/restricted interests: Are there repetitive movements, intense focus on specific objects, or unusual play patterns?

If your toddler *is* pointing but you're reading this out of curiosity

Great. The declarative pointing milestone is present. If you're seeing pointing to share interest and your toddler is also making eye contact, responding to their name, and using some words, then this specific flag is not a concern for you.

Scout tracks the pointing window from 7 months

Parents who use Scout receive an email when the joint attention and pointing window opens, explaining both types of pointing, what gaze-checking looks like, and what the 12-month flag date is. The 18-month M-CHAT is a conversation, not a surprise. Try Scout free →

Know the early developmental milestones before they arrive

Scout covers pointing, name response, social smiles, and every language and social-emotional window through age 3, timed to your baby's exact birthday.

Try Scout Free →