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Developmental Milestones

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, behave, and move (crawling, walking, etc.).

a baby lying on their stomach playing with a large red ball

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

2 months

4 months

6 months

9 months

1 year

18 months

2 years

3 years

4 years

5 years

Download all the milestone checklists

Video on Milestones

Learn how to look for developmental milestones and what to do if you’re worried about your child’s development or think there’s a problem.

baby steps video 

Watch the video >>

 
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