Drag to read about a different month.


    It’s all in the mind – keep stimulating your baby’s brain.

    The hands of a nine month old infant playing with a toy in the air

    Your baby’s world right now

    Getting a grip on new skills.
    Shake, rattle, and roll! Your baby might be developing the ability to grab anything within reach. So be mindful to keep harmful objects out of sight. He might be able to say “mama” too. But it’s completely normal for babies to go months longer before they start saying recognizable words.
    A nine month old infant boy sitting on his seat while staring at his mother

    Your baby’s nutrition

    Introducing your baby to the wonderful world of food.
    Be sure to introduce new foods to your baby gradually and one at a time. This helps determine whether he is allergic. If you notice any unusual reactions during or after feeding your baby a new food, discuss them with your healthcare professional.

    As your 9-month-old continues to grow and develop, consider offering him some new foods, in addition to breast milk and baby formula:

    • Finger foods: Cut up pieces of lightly toasted bagel, small pieces of ripe banana, well-cooked and cooled spiral pasta, teething crackers, and low-sugar, O-shaped cereal
    • Small amounts of protein: Egg; pureed cooked meats, poultry, and boneless fish; tofu; well-cooked and mashed beans with soft skins, such as lentils, split peas, pintos, and black beans
    The legs of a nine month old infant while standing up straight

    Your baby’s development

    Standing tall, your baby is about to stand.
    All babies develop at different rates. You should not be concerned if your baby does something later or earlier than your friend's children. In general, by the end of your baby's ninth month, he will likely be able to do the following:

    • Pull himself to a standing position
    • Walk while holding on to furniture
    • Grab objects with his thumb and index finger
    • Wave “bye-bye”
    • Understand “no”

    Cognitive activities to exercise your baby’s brain.
    Your baby has learned so much during the past eight months. Here are some simple ways to continue his brain development:

    • Read him books while naming and pointing to objects and people.
    • Teach him hand-eye coordination games such as “patty-cake” and “peekaboo.”
    The face of a sleeping nine month old infant

    Things to think about now

    Sleep patterns and tips.
    Baby separation anxiety might keep your baby up at night again, but with a little patience on your part, he should be able to get back to sleep easier than before.

    If teething keeps your baby awake at night, daytime naps can help him handle teething more effectively.

    Feeling rested can help him be more alert and active during the day, which might help him sleep better at night.

    Have questions about SIDS?
    Learn about SIDS at the American Academy of Pediatrics.

    Next month’s developments

    Emotions, imagination, and new foods–oh my!
    By 10 months, he’ll have a budding appetite, a budding imagination, and could still be battling a bit of separation anxiety.