At this age, your little one will have reached quite a few important baby milestones. At 4 months, she can hold her head up by herself now -- a significant motor skill, said pediatrician Dr. Kurt Heyrman. You’ll also notice her interacting and engaging with you more, even copying your facial expressions! She’ll also be able to shake a rattle, try to help you hold her bottle up and may be fascinated at her own reflection in the mirror (even though she doesn’t know it’s her!).
With guidance from Special Education teacher Joji Reynes-Santos, the Centers for Disease Control and Prevention (CDC), the American Academy of Pediatrics, and the Ages and Stages Questionnaires, a tool used by pediatricians for screening a child's development, below are developmental milestones most babies reach by 4 months old.
But first, take note:
Wait until the end of 4 months before observing your baby for his 4-month-old milestones. Every child is different. Some reach their milestones earlier, and others a little later.
Have you been practicing tummy time? The American Academy of Pediatrics (AAP) recommends tummy time to babies as soon as possible. Make sure your child practices it a few times a day when she’s awake and playful.
Make sure your baby is well-rested and fed. Some of the items on this list may require you and your baby to engage in simple activities. Fussiness may make it harder to get accurate observations.
Talk to your child’s doctor at every well-baby visit about the milestones your child has reached. Always consult with a pediatrician who will address your concerns and be able to inform you on what to expect next.
Red flags Children develop at different rates, says the AAP. There may be nothing to worry about. However, it’s important you still bring up any red flag concerns with a pediatrician. According to the CDC, talk to your child’s doctor if your 4-month-old baby:
can't hold her head up or steady
doesn't push down with legs when feet are on a hard surface
doesn't smile at people
doesn't watch things as they move
doesn't coo or make sounds
doesn't bring things to mouth
has trouble moving one or both eyes in all directions