CDC checklist

3 Year Old Milestones

Here's what most children (75% or more) do by 3 years, according to the CDC. Tick off what you've seen and bring the list to your next checkup.

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Social and emotional

Language and communication

Learning and problem-solving

Movement and physical

If something worries you

You know your child best. If your child isn't reaching one or more milestones, has lost skills they once had, or you have other concerns, talk with your child's doctor. The CDC says not to wait. You can also contact your state's early intervention program at cdc.gov/FindEI.

Things to try at 3 years (from the CDC)

  • Encourage your child to solve her own problems with your support. Ask questions to help her understand the problem. Help her think of solutions, try one out, and try more if needed.
  • Talk about your child's emotions and give him words to help him explain how he's feeling. Help your child manage stressful feelings by teaching him to take deep breaths, hug a favorite toy, or go to a quiet, safe place when he is upset.
  • Set a few simple and clear rules that your child can follow, such as use gentle hands when playing. If he breaks a rule, show him what to do instead. Later, if your child follows the rule, recognize and congratulate him.

Source: CDC, What most children do by 3 years (CDC Learn the Signs. Act Early. milestone checklists), retrieved 2026-10-16. These checklists don't replace developmental screening by your child's doctor. Sprout Diary is not a medical service.