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    Developmental milestones record - 9 months

    Growth milestones for children - 9 months; Childhood growth milestones - 9 months; Normal childhood growth milestones - 9 months

    At 9 months, a typical infant will have certain skills and reach growth markers called milestones.

    Information

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

    PHYSICAL CHARACTERISTICS AND MOTOR SKILLS

    A 9 month old has usually reached the following milestones:

    • Gains weight at a slower rate -- about 15 grams per day, 1 pound per month
    • Increases in length by 1.5 centimeters per month
    • Bowel and bladder become more regular
    • Puts hands forward when the head is pointed to the ground (parachute reflex) to protect self from falling
    • Is able to crawl
    • Sits for long periods
    • Pulls self to standing position
    • Reaches for objects while sitting
    • Bangs objects together
    • Can grasp objects between the tip of the thumb and index finger
    • Feeds self with fingers
    • Throws or shakes objects

    SENSORY AND COGNITIVE SKILLS

    The 9 month old typically:

    • Babbles
    • Has separation anxiety and may cling to parents
    • Is developing depth perception
    • Understands that objects continue to exist, even when they are not seen (object constancy)
    • Responds to simple commands
    • Responds to name
    • Understands the meaning of "no"
    • Imitates speech sounds
    • May be afraid of being left alone
    • Plays interactive games, such as peek-a-boo and pat-a-cake
    • Waves bye

    PLAY

    To help the development of the 9 month old:

    • Provide picture books
    • Provide different stimuli:
      • Go to the mall (people)
      • Go to the zoo (animals)
    • 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 together
    • Avoid television time until age 2
    • A transition object may help decrease separation anxiety

    References

    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.

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            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.

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