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Centers for Disease Control and Prevention

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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.

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.

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“learn the signs. act early.” milestones

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Developmental milestones are things most children can do by a certain age. Track your child's milestones and talk with your child's doctor at every visit about the milestones your child has reached

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Sample Individualized Family Service Program_1