Kid Care: Bowlegs and Knock-Knees

If your child's legs aren't completely straight, they may have bowlegs or knock-knees. They may look familiar because, many times, the way a child's legs are shaped is similar to the way their parents' legs were shaped. Bowlegs and knock-knees are common in young children but usually go away as the child grows.

If your child's legs curve outward, they have bowlegs. If your child's knees come together and the lower legs point outward, they have knock-knees. Most babies have bowlegs. The legs straighten, then become slightly knock-kneed as the child grows. Then the legs get straighter as the child continues to grow, but they are usually still slightly knock-kneed in teens and adults. Your doctor will examine your child's legs and may X-ray them to make sure there isn't a structural problem.

Bowlegs and knock-knees almost always correct themselves as your child reaches adolescence. So, if you wait it out, you'll probably notice that, over time, the curves become less and less noticeable. Talk to your doctor if you are concerned. For example, talk with your doctor if your child's legs are severely bowed or knock-kneed, if they become more bowed after about 3 years of age, more knock-kneed after about 7 years of age, of if one leg is different from the other.

If the curves in your child's legs are getting progressively worse, causing pain or limitations, which is rare, braces or surgery may be recommended. These help straighten your child's legs and prevent future problems.