CDC’s Developmental Milestones

In 2022, CDC’s milestones and parent tips were updated and checklist for ages 15 and 30 months were added. For more information about the CDC’s developmental milestones, please review the Pediatrics journal article and these important key points.

Download CDC’s free Milestone Tracker App

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.

Click on the age of your child to see the milestones:

“Learn the Signs. Act Early.” materials are not a substitute for standardized, validated developmental screening tools.

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Special acknowledgments to the subject matter experts and others who contributed to the review of data and selection of developmental milestones, especially Paul H. Lipkin, MD, Michelle M. Macias, MD, Julie F. Pajek, PhD, Judith S. Shaw, EdD, MPH, RN, Karnesha Slaughter, MPH, Jane K. Squires, PhD, Toni M. Whitaker, MD, Lisa D. Wiggins, PhD, and Jennifer M. Zubler, MD.
Sincere gratitude to Natalia Benza, MD and José O. Rodríguez, MD, MBA for their thoughtful review of the Spanish-language translation of these milestones.


Milestones Matter for Families Video

In this video, parents of young children share their personal experiences of using CDC’s “Learn the Signs. Act Early.” tools and resources to learn about child development, recognize the milestones their child should be reaching, and guide them about what to do if they ever become concerned.

Watch this video »

Milestones Matter for Families! (Spanish Video)

In this Spanish-language video, two families share personal stories of how using CDC’s “Learn the Signs. Act Early.” resources helps them learn about their child’s developmental milestones and support their children’s development.

Watch this Spanish language video »