My son just turned 3 years old (36 month
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My son just turned 3 years old (36 months). He was born full-term.
He speaks single words to ask for milk or snacks, but he does not string words into 3-word sentences (like 'I want juice' or 'daddy go work'), does not ask 'who/what/where' questions, and gets frustrated when strangers can't understand him.
My in-laws tell us 'boys talk late, Einstein didn't talk until 4, just wait until preschool'.
We live in Denver, Colorado (US).
Can you tell us:
1. What does the CDC 3-year developmental checklist actually say about communication milestones (what 75%+ of 3-year-olds do)?
2. What dated observations should we bring to his upcoming 3-year well-child checkup to request a formal developmental evaluation?
Answer
By the CDC 3-year card, what 75%+ of children this age do in **Language** is:
- Talks with you in conversation using at least two back-and-forth exchanges
- Asks "who," "what," "where," or "why" questions, like "Where is mommy/daddy?"
- Says what action is happening in a picture or book when asked, like "running," "eating," or "playing"
- Says first name, when asked
- Talks well enough for others to understand, most of the time
Your son does the first row in a small way (single words, mostly for food/drink), and the rest of the language list — back-and-forth, who/what/where questions, naming what's in a picture, saying his own name, being understood most of the time — is what is missing or thin. "Strangers can't understand him, and he gets frustrated" is the parent's wording of the last bullet on the card. Source: https://www.cdc.gov/act-early/milestones/3-years.html
This is not a same-day emergency — no lost skills, no seizure, no breathing or color change. But it is a "see a clinician soon" lane, not a "wait for preschool" lane. The card's own "Never do" line is: *Do not wait for school as the only next step when the caregiver is concerned.* On Einstein: the card is built around what most3-year-olds do, not around historical outliers, and "boys talk late" does not move a child out of the list — the card is for boys and girls alike.
For the US row: general developmental screening at 9, 18, and 30 months, autism-specific screening at 18 and 24 months, **and also whenever a caregiver is concerned**. Your son's 3-year well-child visit is the right place to make that request. If the pediatrician agrees, the next step in the US system is a formal evaluation — under age 3 it's state Early Intervention, age 3 and up it goes through your local public school's preschool special-education program. Source: https://www.cdc.gov/act-early/about/developmental-monitoring-and-screening.html
**Take this to the 3-year visit — dated, not concluded:**
| Date | What you saw |
| --- | --- |
| | Hearing: turned / did not turn when you called his name in a quiet room |
| | Language: how many single words, in which situations, any two-word combinations, in every language he hears at home |
| | Gestures: pointing with a finger to ask, waving, nodding, head shake |
| | Showing: brings a toy or picture to show you, looks back to check you're watching |
| | Eye contact: when he's asking for milk/snacks, does he look at your face |
| | Frustration: what does he do when not understood — give up, pull, tantrum, try another word |
Bring the dated list, not a label. The pediatrician decides what comes next — a re-check, a formal screening (ASQ-3 is one common tool), a hearing test, or a referral for a full developmental evaluation.
Does he point with one finger to ask for something, or bring a toy over to show you?