The Growing Child: 7 to 9 Months
The Growing Child: 7 to 9 Months
How much will my baby grow?
While all babies may grow at a
different rate, the following is the average for boys and girls 7 to 9 months of
Weight. Average gain of 1 pound each month. Boys usually weigh about ½
pound more than girls. Generally expect 2 times the birth weight by 4 to 5 months
and 3 times the birth weight by 1 year.
Height. Average growth of about ½ inch each month.
Head size. Average growth of about ¼ inch each month.
What can my baby do at this age?
Babies are rapidly developing their
physical abilities at this age. They become mobile for the first time and safety in
home becomes an important issue. Babies may progress at different rates. But these
some of the common milestones your baby may reach in this age group:
Rolls over easily from front
to back and back to front
Sits leaning forward on hands
at first, then unsupported
Bounces when supported to
Gets on hands and feet and
rocks back and forth
May creep, scoot,
crawl-backward first, then forward
Starts to pull up to
Reaches for and grasps
objects using whole hand
Bangs toy on table
Can hold an object in each
May hold a bottle
Grasps object with thumb and
finger by 8 to 9 months
Starts teething, often
starting with the 2 center front teeth in the lower jaw, then the 2 center front
teeth in the upper jaw
Learns to drink from cup
Puts everything into
Naps are often twice,
sometimes 3 times a day, for 1 to 2 hours each (on average)
May start to wake up during
the night and cry
What can my baby say?
It is very exciting for parents to
watch their babies become social beings who can interact with others. Every baby
develops speech at his or her own rate. But these are some of the common milestones
this age group:
Makes 2 syllable sounds
Makes several different vowel
sounds, especially "o" and "u"
Repeats tones or sounds made
What does my baby understand?
A baby's awareness of people and
surroundings increases during this time. Babies may progress at different rates. But
these are some of the common milestones in this age group:
Responds to own name and
Pays attention to
Seems to understand some
words (such as "eat")
Prefers mother over
Enjoys seeing self in
Responds to changes in
emotions of others
Is afraid of strangers
Shows interest in and dislike
sounds, such as a cough or snort
Starts to understand object
permanence and can uncover a toy after seeing it covered
May follow 1-step commands
with a sign to demonstrate such as, "get the ball" while parent points to ball
How to help increase your baby's
development and emotional security
Here are some ways to foster your
baby's emotional security:
Give your baby safe toys that
make noises when shaken or hit.
Play in front of a mirror,
calling your baby by name and pointing to your baby's reflection in the
When talking to your baby,
pause and wait for them to respond just as when talking with an adult.
Play pat-a-cake and
Name common objects when
shown to your baby.
Make different sounds with
your mouth and tone of voice.
Repeat and expand the sounds
your baby makes, such as "ma-ma" when he or she says "ma."
Show picture books and read
stories to your baby every day.
Give your baby toys with
objects or knobs to push, poke, or turn.
Give your baby toys that
stack or nest and show them how they work.
Build a tower with your baby
and show them how to knock it down.
Create a routine for bath and
Offer a cup.
Online Medical Reviewer: Liora C Adler MD
Online Medical Reviewer: Amy Finke RN BSN
Online Medical Reviewer: Heather M Trevino BSN RNC
Date Last Reviewed:
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