Many babies are born looking bow-legged. It's because of the position they are in inside the womb, so they come out and their legs are often a kind of funny shape. It's very common for a baby to look bow-legged, especially when you hold them up, so their weight is against their feet, let's say, on a table; even before they start walking. It's considered a normal condition under 18 months of age and as a child starts to bare weight on their legs and starts to walk and run around, most of the time they straighten out on their own, and by age 3 it is barely noticeable. In rare cases, if the bow-leggedness continues, your pediatrician may refer you to a pediatric orthopedist. There are some rare diseases that can cause severe bow-leggedness, such as rickets which is a vitamin C deficiency, or Blounts disease, but in most cases, it is a condition that will just resolve itself on its own and nothing to worry about.