Baby Development

Your baby's physical development is a thing of beauty and a source of pride. From sitting to crawling, walking to talking, smiling to laughing, each achievement is a developmental milestone. Learn what to expect next in your baby's physical and intellectual development.

Baby Milestones by Month

Your baby’s first year is full of developmental milestones. Here, we’ve broken down what to expect each month. It’s important to remember, though, that every baby develops at a different pace, and there’s a wide range of normal timelines.
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My Daughter Grew Up Before My Eyes When She Became a Big Sister, and I Wasn't Ready

My 3-year-old went from being a baby to a big kid right when I walked through the front door with my newborn. She was ready to be a big sister, but it was a transition I learned that I wasn't prepared for.
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What Exactly Does Hip Dysplasia Mean for Babies?

In babies with hip dysplasia, the ball of the thigh bone doesn’t fit properly into the socket of the pelvis. Here’s what you need to know about this relatively common condition.
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More Baby Development

The Stages of Sitting

Watching your baby gain independence is exciting. A major accomplishments every parent looks forward to is when he can sit on his own. Pediatrician Kurt Heyrman, M.D. says there are ways that you can help Baby gain these large motor skills and help him sit on his own. Here's how.
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Ways to Help Baby Learn to Walk

From sitting to crawling and cruising your baby's journey to walking is an exciting time.
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6 Weird Things Babies Do and Why

Whether it's touching themselves "down there" or producing never-ending fake coughs, understand your little ones' most peculiar habits.