Introduction
Social and Emotional
Movement
Vision
Developmental Health Watch
Babies develop at their own pace, so it's impossible to tell exactly when your child will learn a given skill. The developmental milestones listed below will give you a general idea of the changes you can expect, but don't be alarmed if your own baby's development takes a slightly different course.
Social and Emotional
- Begins to develop a social smile
- Enjoys playing with other people and may
cry when playing stops
- Becomes more expressive and communicates
more with face and body
- Imitates some movements and facial expressions

Movement
- Raises head and chest when lying on
stomach
- Supports upper body with arms when lying
on stomach
- Stretches legs out and kicks when lying
on stomach or back
- Opens and shuts hands
- Pushes down on legs when feet are placed
on a firm surface
- Brings hand to mouth
- Takes swipes at dangling objects with
hands
- Grasps and shakes hand toys

Vision
- Watches faces intently
- Follows moving objects
- Recognizes familiar objects and people at
a distance
- Starts using hands and eyes in coordination

Hearing and Speech
- Smiles at the sound of your voice
- Begins to babble
- Begins to imitate some sounds
- Turns head toward direction of sound

Developmental Health Watch
Alert your child's doctor or nurse if your child displays any of the following signs of possible developmental delay for this age range.
- Does not seem to respond to loud noises
- Does not notice hands by 2 months
- Does not follow moving objects with eyes
by 2 to 3 months
- Does not grasp and hold objects by 3
months
- Does not smile at people by 3 months
- Cannot support head well by 3 months
- Does not reach for and grasp toys by 3 to
4 months
- Does not babble by 3 to 4 months
- Does not bring objects to mouth by 4
months
- Begins babbling, but does not try to
imitate any of your sounds by 4 months
- Does not push down with legs when feet
are placed on a firm surface by 4 months
- Has trouble moving one or both eyes in
all directions
- Crosses eyes most of the time (occasional
crossing of the eyes is normal in these first months)
- Does not pay attention to new faces, or seems very frightened by new faces or surroundings
From CARING FOR YOUR BABY AND YOUNG CHILD: BIRTH TO AGE 5 by Steven Shelov, Robert E. Hannermann, © 1991, 1993, 1998, 2004 by the American Academy of Pediatrics. Used by permission of Bantam Books, a division of Random House, Inc.

The National Center on Birth Defects and Developmental Disabilities (NCBDDD) promotes the health of babies, children, and adults, and enhances the potential for full, productive living. Our work includes identifying the causes of birth defects and developmental disabilities, helping children to develop and reach their full potential, and promoting health and well-being among people of all ages with disabilities.
See PDF version:
Important Milestones: By the End of 3 Months [PDF, 133KB]