Please see also the CDC’s Learn The Signs. Act Early.
From birth to 5 years, your child should reach milestones in how he plays, learns, speaks, acts and moves. Track your child’s development and act early if you have a concern.
In this post, I link to the new (Jan. 31, 2022) CDC Developmental Milestones.
All that follows is from the above resource.
CDC’s milestones and parent tips have been updated and new checklist ages have been added (15 and 30 months). Due to COVID-19, updated photos and videos have been delayed but will be added back to this page in the future. For more information about the recent updates to CDC’s developmental milestones, please view the Pediatrics journal articleexternal icon describing the updates.
Skills such as taking a first step, smiling for the first time, and waving “bye bye” are called developmental milestones. Children reach milestones in how they play, learn, speak, act, and move (crawling, walking, etc.).
Click on the age of your child to see the milestones:
- 2 months
- 4 months
- 6 months
- 9 months
- 1 year
- 15 months
- 18 months
- 2 years
- 30 months
- 3 years
- 4 years
- 5 years
- Print the milestone checklists (PDF) pdf icon[4 MB, 24 Pages, 508] or click on your child’s age above to complete the checklist online.
- Download the Milestone Tracker mobile app
“Learn the Signs. Act Early.” materials are not a substitute for standardized, validated developmental screening tools.
Developmental Milestones Videos
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