Developmental milestones

18 months

Tick what your child already does. Nothing is saved; leaving the page clears it.

CDC milestone check

Tick what your child already does

Social/Emotional
Language/Communication
Cognitive (learning, thinking, problem-solving)
Movement/Physical Development

0 of 15 ticked

The 2022 revision moved the bar from what 50% of children do to what about 75% or more do, so a milestone a child has not reached is worth raising sooner than the older lists implied.

Missing one does not mean something is wrong. What it is for: read those items out at the next well-child visit. This page does not diagnose, and it is not a substitute for a standardized, validated screening tool.

China’s warning signs, alongside

Warning signs published for 18 months

  • Does not say “baba” or “mama” meaningfully
  • Does not point to a person or object on request
  • Makes no eye contact
  • Cannot walk unaided

This list runs the other way from CDC’s: CDC lists what a child should do, this lists what a child still does not. Any one of them being true points to further screening — not to a diagnosis.

WHO motor attainment windows

None of WHO’s six motor windows are open at this age.

Where the measurements sit

Development is half of it; the body is the other half. This works out your own child’s height and weight position, entered once and used site-wide.

Whose standard
Sex

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Where this page’s data comes from

  • CDC Learn the Signs. Act Early. milestone checklists (revised February 2022)
  • China NHC screening list of developmental warning signs (2022)