Happy African American family with their little girl.

1 Year Online Milestone Checklist

1-year old boy

How your child plays, learns, speaks, acts, and moves offers important clues about your child’s development. Developmental milestones are things most children (75% or more) can do by a certain age. Check the milestones your child has reached by the end of 1 year by completing the checklist below. Share it with your child’s doctor, teacher, and other providers, and be sure to talk about the milestones your child has reached and what to expect next.

If your child was born more than 3 weeks prematurely, use his/her corrected ageexternal iconexternal iconexternal icon. If your child’s age falls between 2 checklist ages, use the checklist for the younger age.

Checking children’s development regularly is important. CDC’s free Milestone Tracker app is also available to complete the checklists, with reminders and helpful tips on the go!  Available on the AppStoreexternal iconexternal icon and GooglePlayexternal iconexternal icon.

Your Baby at 1 Year

Milestones matter! Check the milestones your baby has reached by age 1 by completing the checklist below.

*These fields are required.


CDC does not collect or share any personal information that can be used to identify you or your child.
Click the photos and videos below for examples of the milestones.
What Most Babies Do by this Age:
Social/Emotional

Is shy or nervous with strangers




Cries when mom or dad leaves




Has favorite things and people




Shows fear in some situations




Hands you a book when he wants to hear a story




Repeats sounds or actions to get attention




Puts out arm or leg to help with dressing




Plays games such as “peek-a-boo” and “pat-a-cake”




Language/Communication

Responds to simple spoken requests




Uses simple gestures, like shaking head “no” or waving “bye-bye”




Makes sounds with changes in tone (sounds more like speech)




Says “mama” and “dada” and exclamations like “uh-oh!”




Tries to say words you say




Cognitive (learning, thinking, problem-solving)

Explores things in different ways, like shaking, banging, throwing




Finds hidden things easily




Looks at the right picture or thing when it’s named




Copies gestures




Starts to use things correctly; for example, drinks from a cup, brushes hair




Bangs two things together




Puts things in a container, takes things out of a container




Lets things go without help




Pokes with index (pointer) finger




Follows simple directions like “pick up the toy”




Movement/Physical Development

Gets to a sitting position without help




Pulls up to stand, walks holding on to furniture (“cruising”)




May take a few steps without holding on




May stand alone




Selected “not sure”? Watch for these milestones over the next week or two. Try some things with your child that gives him/her the chance to show the milestone. If you’re still not seeing the milestone, see the steps below.

Selected “not yet” or have other concerns or questions about your child’s development? Talk with your child’s doctor, teacher and/or another trusted provider. Share the checklist and any questions or concerns you might have. Ask about developmental screening. It’s recommended for all children. If you, the doctor, teacher, or other provider is still concerned after screening, ask to be connected with (1) a specialist who can learn more about your child AND (2) with services and other supports that may help. Visit www.cdc.gov/Concerned for more information.


– Share the checklist with your child’s healthcare provider, early educator, WIC Clinic, or other care providers by FORWARDING the email you receive.
– Be sure to add your child’s name and birthdate (if needed) when forwarding the checklist so your provider can identify it as your child’s.