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    Developmental milestones record - 12 months

    Normal childhood growth milestones - 12 months; Growth milestones for children - 12 months; Childhood growth milestones - 12 months

    The typical 12-month-old child will demonstrate certain physical and mental skills. These skills are called developmental milestones.


    All children develop a little differently. If you are concerned about your child's development, talk to your child's health care provider.


    A 12-month-old child is expected to:

    • Be 3 times the birth weight
    • Grow to a height of 50% over birth length
    • Have a head circumference equal to that of the chest
    • Have one to eight teeth
    • Stands by his or herself
    • Walk alone or when holding one hand
    • Sit down without help
    • Bang two blocks together
    • Turn through the pages of a book by flipping many pages at a time
    • Picks up a small object using the tip of thethumb and index finger
    • Sleep 8 - 10 hours a night and take one to two naps


    The typical 12-month-old:

    • Begins pretend play (such as pretending to drink from a cup)
    • Follows a fast moving object
    • Responds to his or her name
    • Can say momma, papa, and at least one or two other words
    • Understands simple commands
    • Tries to imitate animal sounds
    • Connects names with objects
    • Understands that objects continue to exist, even when they are not seen (object constancy)
    • Participated in getting dressed (raises arms)
    • Plays simple back and forth games (ball game)
    • Points to objects with index finger
    • Waves bye
    • May develop attachment to a toy or object
    • Experiences separation anxiety and may cling to parents
    • May make brief journeys away from parents to explore in familiar settings


    You can help your 12-month-old develop skills through play:

    • Provide picture books
    • Provide different stimuli, such as going to the mall or zoo
    • Play ball
    • Build vocabulary by reading and naming people and objects in the environment
    • Teach hot and cold through play
    • Provide large toys that can be pushed to encourage walking
    • Sing songs
    • Have a play date with a child of a similar age
    • Avoid television time until age 2
    • A transitional object may help with separation anxiety


    Feigelman S. The first year. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics. 19th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 8.


          A Closer Look

            Review Date: 11/9/2012

            Reviewed By: Jennifer K. Mannheim, ARNP, Medical Staff, Department of Psychiatry and Behavioral Health, Seattle Children's Hospital. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, Stephanie Slon, and Nissi Wang.

            The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.

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            St. Luke's Hospital - 232 South Woods Mill Road - Chesterfield, MO 63017 Main Number: 314-434-1500 Emergency Dept: 314-205-6990 Patient Billing: 888-924-9200
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