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Your Baby at 4 Months Old

Month To Month Baby Development


By month four, your infant is alert and reacting to the happenings in her environment. Month to month, baby is becoming more interested in his surroundings. Your baby is grabbing for toys, and you are finally able to play more interactively with him. The fun is just beginning!

Baby Development Milestones To Watch For

  • Baby now has the ability to hold her head up herself when positioned upright.

  • Baby's interaction with her world continues, now reaching for objects in front of her.

  • Baby now responds to your voice and begins to look in your direction when you call him by name.

  • Baby starts to recognize and respond to people familiar to him.

How To Help Your Baby

  • Encourage your child to move and reach by getting a play gym. Brightly colored dangling toys help babies gain strength in the neck and back as they reach up to grab and play.

  • Find ways to bring music into your baby's life. Research suggests that early and regular exposure to music impacts infants positively, both intellectually and socially. A good way to share music with your baby is through a music class. Also, you get the opportunity to meet other moms and widen your social circle.

  • Look for toys that your little one can shake and bang, such as a rattle or drum. As interest and motor skills develop, these toys are clear favorites.

  • Take your baby out into the world and introduce him to new sights and sounds. Your child will benefit from these interactions, and you can break the repetition of day-to-day life with a young baby.

  • Be conscious of toys, such as mobiles, in your baby's crib. As babies' motor skills develop and they get more curious, they may get into trouble with toys which are meant to be watched and not touched.

Common Concerns - Growth Charts

A common cause of parental worry at any age is whether their child's height and weight is within an appropriate range. It is important to remember that the growth chart you review with your doctor simply compares your infant with others of the same age and gender. For instance, if your 4 month old daughter is in the 45th percentile for height, then 45% of girls her age are shorter than her, and 55% are taller. They are used as a general guide for your pediatrician and are often nothing to worry about. However, you know your baby best, so don't be afraid to talk to your doctor about any concerns you may have.

New Parent Help: "My baby is still so young. Should I still play with him?"

Absolutely! Your little one requires stimulation to help her develop. There is a lot going on right now developmentally, and play helps your child mature both physically and mentally. By interacting with your baby and encouraging her to explore her world she'll learn about shapes, colors, and textures. Your baby at 4 months old relies on you to create a safe environment for her to explore. In addition to helping your child develop control of movements and balance, playing with your infant allows you to bond with her. Don't be afraid to be creative, and, most importantly, have fun!

What's Next? Click here to learn about month by month baby development - 5 months old.