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Infant and Newborn Development

Source: MedlinePlus Health Topics, U.S. National Library of Medicine

Last synced 8/15/2026Status: primary verified

When will my baby take his first step or say her first word? During their first year, babies start to develop skills they will use for the rest of their lives. The normal growth of babies can be broken down into the following areas: Gross motor - controlling the head, sitting, crawling, maybe even starting to walk Fine motor - holding a spoon, picking up a piece of cereal between thumb and finger Sensory - seeing, hearing, tasting, touching and smelling Language - starting to make sounds, learning some words, understanding what people say Social - the ability to play with family members and other children Babies do not develop at the same rate. There is a wide range of what is considered "normal." Your baby may be ahead in some areas and slightly behind in others. If you are worried about possible delays, talk to your baby's health care provider.

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This information is for general education and is not medical advice. Always talk to a licensed U.S. clinician about your situation, medications, or treatment decisions.