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Three to Six Months: Milestones to Expect In Your Baby's Development

written by: Finn Orfano • edited by: Amy Carson • updated: 6/17/2014

Are you curious about your baby and its development? This article will cover milestones for babies between three to six months of age. Learn what you can expect from your baby during this time of their life.

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    Social and Emotional Development Milestones

    Once your baby reaches the age of three months you should be able to see some of the following changes, but don't worry if he does Baby from LearnWhatIs not reach all these milestones early on. During the next three months or so your baby should progress enough to be able to do all the things listed here.

    The social and development milestones for babies between the ages of three and six months include being able to smile at the sound of a voice he knows. At this age they are able to recognize familiar faces, and should be eager to say hello. Babies of this age also enjoy playing with others and may be upset when the playing stops for some reason. Facial expressions are also varied by this stage, and your baby should try to communicate with his face and through his body movements.

    Another interesting observation is that babies of this age are normally very intrigued by their own reflections, so holding your baby in front of a mirror should really keep him occupied! By the time a baby is three months old, he should begin to comfort himself and learning to rely on himself in this way makes life a little easier for his mommy. You should find that your baby is calmer when waking up, and goes to sleep more easily on his own.

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    Physical Development Milestones

    Your baby will make a lot of progress during the next three months and his physical development will be no exception. Some of the milestones to look for between the ages of three and six months are that your baby should be able to raise his head and chest when he lies on his tummy, this will be because he's able to support his upper body with his arms at this age. Your baby should also stretch out his legs and kick when lying down, and should also push down with his feet when he is placed on a firm surface.

    At this age his hands should also open and close and he should be able to hold an object if you put it in his hand, but will not be able to pick something up on his own just yet. He will be able to bring his hands to his mouth and may chew or suck on his fingers, and may also take swipes at dangling toys or objects.

    One of the most important milestones is that by six months your baby should be able to sit without any help. Between three to six months he is likely to need a little support, but as time goes on you should notice an increase in strength in his back muscles and this will allow him to sit up on his own.

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    Cognitive and Language Development

    During the age of three to six months your baby's cognitive abilities should begin to increase and he'll watch faces very closely. He will also develop the ability to recognize familiar faces and objects. One of the more prominent milestones is that your baby should begin to respond to his name. Your baby should also be able to follow moving objects, and should be able to use his hands in eyes in coordination by the time he is six months old. It is important to remember that some babies develop a little faster than others, so try not to put pressure on yourself or your baby.

    Your baby should begin to babble, and to imitate some of the sounds or words he hears at this stage of his life, and you should also see some reaction when playing music. The most common reaction for babies of this age is to turn their heads to try and pinpoint the origin of the sounds.