Milestone Tracker
A general guide to common developmental ranges. It is not a screening tool — talk to your pediatrician about concerns.
Use the tool
General developmental guidance — common milestone ranges, not a screening tool. Every baby grows on their own timeline. Consult your pediatrician for concerns, and see the CDC’s official milestone checklists ("Learn the Signs. Act Early."). CDC milestone checklists
A general guide to common developmental ranges. It is not a screening tool and every child develops at their own pace. For official checklists and guidance on when to talk to your pediatrician, see the CDC’s “Learn the Signs. Act Early.” program.