If you are wondering whether your 0–3-year-old's communication is on track, you are not alone, and asking early is a strength, not an overreaction.
Quick takeaways:
- Communication is more than words: gestures, eye contact, joint attention all count
- Most concerning signs: no babbling by 12 months, no single words by 16 months, no two-word phrases by 24 months
- Receptive language (understanding) often develops weeks ahead of expressive (speaking)
- Boys, bilingual kids, and "late talkers" do exist, but waiting too long has real costs
- Early evaluation is low-risk and high-value: it does not "label" a child, it opens doors
Communication delays affect about 5–8% of preschool children and are highly responsive to early intervention. Catching them early is the single biggest predictor of how easily they resolve (NIDCD, 2024).
Quick Reference: communication milestones 0–3
| Age | Should be doing | Watch for if not |
|---|---|---|
| 6 months | Cooing, vowel sounds, smiles back, follows your face | No social smile, no response to voice |
| 9–12 months | Babbling ("ba-ba", "da-da"), gestures (waving, pointing), responds to name | No babbling, doesn't respond to name |
| 12–15 months | First words, shows you things by pointing, follows simple commands | No words by 16 mo, no pointing |
| 18 months | ~10–20 words, follows 1-step instructions, recognizes body parts | < 10 words, doesn't follow instructions |
| 24 months | ~50+ words, 2-word phrases ("more milk"), follows 2-step instructions | No 2-word phrases, regression in words |
| 30–36 months | 200+ words, simple sentences, strangers understand 50–75% | Not understandable to family, very limited vocabulary |
The American Speech-Language-Hearing Association notes that communication is a continuum, children move at different speeds, but the order of milestones is highly consistent (ASHA, 2024).
Communication is more than words
Parents often focus on speaking, but the foundations show up earlier. Watch for these "pre-speech" signals:
- Joint attention. Does your child point at something to show you, not just to request? Following your gaze, looking at what you're looking at, these emerge around 9–12 months and predict later language.
- Gestures. Waving "bye", reaching up to be picked up, pointing, head shake for "no." Children typically use 16+ gestures by 16 months. Fewer gestures + delayed words is more concerning than delayed words alone.
- Receptive language. Does your child understand more than they say? "Where's daddy?" → looks at daddy. "Bring me the ball" → goes to get it. Understanding usually runs ~3–6 months ahead of speaking.
- Responsiveness. Looking when called, turning toward sounds, engaging in back-and-forth "conversations" of babbling.
A child whose receptive language is strong but expressive is delayed is often a late talker, usually a better prognosis than when both are behind.
Specific signs by age
9–12 months
- Not babbling at all (no "ba", "da", "ga" sounds)
- Doesn't respond to their name consistently
- No gestures (waving, reaching, pointing)
- Doesn't seem to enjoy back-and-forth play (peek-a-boo, copying sounds)
For a deeper look at the babbling milestone, see baby not babbling at 9 months.
12–18 months
- No single meaningful words by 16 months
- Doesn't follow simple 1-step instructions ("come here", "give me")
- Doesn't point to ask for things
- Limited eye contact during interaction
If your 15-month-old isn't speaking yet, see no words at 15 months, should I worry?.
18–24 months
- Fewer than 10 words at 18 months
- No two-word phrases by 24 months ("more milk", "daddy go")
- Doesn't understand simple questions ("where's the ball?")
- Loss of words they previously had, this is always worth a check
24–36 months
- Speech is mostly unintelligible to people outside the family at 30 months
- Doesn't combine 3+ words by 30 months
- Doesn't ask questions
- Difficulty following 2-step instructions ("get your shoes and bring them here")
For toddlers who clearly understand but aren't speaking, see toddler understands but doesn't talk.
Common myths (and what's actually true)
"Boys talk later." Partly true, boys average a few weeks behind girls in early vocabulary growth. But the gap doesn't widen, and "he's a boy" is not a reason to wait past the 16-month no-words mark or the 24-month no-phrases mark. The cutoffs apply to all children.
"Bilingual kids are delayed." False. Bilingual children meet the same milestones at the same ages, just split across two languages. Count words across both languages combined. If a 24-month-old has 50+ words across English + Spanish, they are not delayed.
"It's just a phase, give him time." Sometimes true (about 50–70% of late talkers do catch up by school age, see late talker vs speech delay). But waiting has costs: by 3, intervention is more involved than at 18 months, and the social side of language is harder to recover. Asking does not commit you to anything.
"Screen time will fix it." False. Passive screen time has been consistently linked to slower expressive language development. Interactive talk with a real adult is the only thing that reliably helps. See does screen time cause speech delay for the research.
What you can do at home (alongside any evaluation)
These are all evidence-based and low-effort:
- Narrate your day. "Mommy is washing the apple. Now I'm cutting it. Crunchy apple!" Babies wire language from hearing real, contextual speech.
- Read every day. 15–20 minutes total. Doesn't have to be one book, multiple short reads count.
- Repeat back + extend. Child says "ball." You say "Yes, big red ball!" This expands their model without correcting.
- Reduce passive screen time. Especially under 18 months.
- Get on their level. Face-to-face conversations, even with babies, beat side-by-side ones.
- Wait and pause. Give them a beat to respond. Many parents fill the silence too fast.
For more concrete techniques, see how to encourage toddler to talk.
When to seek professional help
The general guidance from ASHA, AAP, and pediatric speech specialists is: if in doubt, ask. Specific triggers:
- No babbling by 12 months
- No words by 16 months
- No two-word phrases by 24 months
- Loss of language skills at any age
- Difficulty understanding simple language (receptive delay)
- Family or daycare reports the same concerns
- The child's frustration is high because they can't express themselves
A pediatrician's visit is the first stop, and going in with your milestone notes organized helps it land: see how to prepare for a pediatric visit with your child's data. They will likely refer you to:
- Audiologist: to rule out hearing loss (the most common reversible cause of speech delay)
- Speech-language pathologist (SLP): for evaluation and, if needed, therapy
- Early Intervention services (US) or equivalent national programs, typically free or low-cost for under-3s
The AAP describes early evaluation as "almost universally positive", most children either get reassurance, or get help that materially improves outcomes (AAP, 2024). For the full month-by-month arc and how to support it, see the parent's guide to toddler speech development.
Frequently asked questions
What are the earliest signs of a communication delay?
The earliest signs are usually pre-speech: not responding to their name by 9 months, no babbling by 12 months, and absence of gestures (waving, pointing) by 12–15 months. These three together are more concerning than any one alone, and they often appear before parents notice "missing words."
How do I know if it's a delay or just a late talker?
"Late talker" is a specific clinical term, a child with normal receptive language and social engagement but delayed expressive vocabulary. About 50–70% catch up by school age. A "communication delay" or "language disorder" includes both expressive and receptive issues, and benefits more from early intervention. The difference matters for how to respond, see late talker vs speech delay for the full breakdown.
My pediatrician said "wait and see": should I?
Sometimes "wait and see" is appropriate (a 17-month-old with strong gestures and understanding who has a few words). But if your child has multiple red flags, no babbling, no gestures, weak receptive language, and the pediatrician suggests waiting past 18 months, it is reasonable to ask for a referral anyway. Early intervention services typically don't require pediatric referral and can be self-requested in most US states and many countries.
Can autism cause communication delay?
Autism often presents with communication differences, but communication delay alone does not mean autism. The combination of language delay + reduced joint attention + reduced social engagement is more concerning. See signs of autism vs speech delay for how clinicians distinguish them.
What should I expect at a speech evaluation?
Most evaluations involve play-based observation and structured tasks, there are no scary tests. The SLP watches how your child uses sounds, gestures, words, and language for communication. They typically also screen receptive language. A full evaluation takes 60–90 minutes. The result is either reassurance, a recommendation for monitoring, or a plan for therapy.
How KidyGrow helps
Keeping communication milestones straight in your head is hard. The dates blur together, and most parents only realize "wait, when did she last say something new?" weeks after the gap appeared.
KidyGrow learns your child. As you log new words, gestures, and milestones over 3–5 days (the warm-up window), the app starts surfacing patterns specific to your child, not the average child in a chart. The Daily Brief on your home screen flags age-appropriate next milestones and shows when something is meaningfully behind: "no new words logged in 3 weeks, check the 18-month milestones" or "your child is ahead on receptive but expressive is in the bottom 25%, common pattern, here's what to watch."
Adaptive plans, not generic tips. The longer you use KidyGrow, the better it remembers what your child can already do, so when something is genuinely off-track, you see it early, not months late. For related concerns, see how to encourage toddler to talk and signs of autism vs speech delay.
This is the difference between a record and a read on it. A record shows you what happened. Understanding shows you when to act.
Sources
- National Institute on Deafness and Other Communication Disorders (NIDCD). Speech and Language Developmental Milestones. 2024. https://www.nidcd.nih.gov/health/speech-and-language
- American Speech-Language-Hearing Association. How Does Your Child Hear and Talk? 2024. https://www.asha.org/public/speech/development/01/
- American Academy of Pediatrics. Language Delay. HealthyChildren.org, 2024. https://www.healthychildren.org/English/ages-stages/toddler/Pages/Language-Delay.aspx
- American Speech-Language-Hearing Association. Late Blooming or Language Problem? 2024. https://www.asha.org/public/speech/disorders/late-blooming-or-language-problem/
_Educational content; not medical advice. If you are concerned, talk with your pediatrician or request an evaluation from a speech-language pathologist._