This checklist will help you keep track of the milestones your 4-month-old baby has reached. You can download a printable version of this checklist below, and complete it on paper. Or, you can track milestones by using the free CDC Milestone Tracker app on your mobile device. (Note: This will open in a new tab).

Check off the milestones as your baby reaches them. Bring your checklist (or phone with the app installed) to your baby’s next well visit. Be sure to bring a list of any questions you have. Having the list ready will make it easier to focus on what is most important to you.

Reminder

As a parent, you know your child best. Talk to your child’s health care provider, teacher, and/or another trusted provider and share your concerns if:

• Your child is not meeting one or more of the milestones for their age
• Has lost skills they once had
• You have other concerns. 

Don’t wait. Acting early can make a real difference!

What most babies do by this age: 

Social/Emotional

• Smiles on their own to get your attention
• Chuckles (not yet a full laugh) when you try to make them laugh
• Looks at you, moves, or makes sounds to get or keep your attention

Language/Communication

• Makes sounds like “oooo”, “aahh” (cooing)
• Makes sounds back when you talk to them
• Turns head towards the sound of your voice

Cognitive (Learning, thinking, problem-solving)

• If hungry, opens mouth when they see a breast or bottle
• Looks at hands with interest

Movement/Physical Development

• Holds head steady without support when being held
• Holds a toy when you put it in their hand
• Uses arms to swing at toys
• Brings hands to mouth
• Pushes up onto elbows/forearms when on tummy

Questions or concerns I have about my baby: 

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SAVE And Print

Save a printable version of this checklist.