Quick answer
Bow legs (knees apart) are normal in babies and toddlers, and knock knees (knees together, ankles apart) are common in preschoolers. According to the American Academy of Pediatrics and Nemours/KidsHealth, both are usually a normal part of growth that straightens on its own, with most legs looking typical by about age 7 to 8, without special shoes or braces. Pediatric guidance finds corrective shoes aren't routinely recommended for ordinary cases. See a doctor if it's painful, one-sided, severe, or not improving.
First, take a breath
If you've looked down at your toddler's stance and noticed their knees curving outward, or your preschooler's knees seeming to knock together, it's natural to wonder if something needs fixing. The reassuring part: for almost every child, this is a normal stage of growing legs, and it sorts itself out on its own as they get older.
Bow legs and knock knees are two of the most common things parents bring to their pediatrician. If you've been searching "shoes for bow legs" or "is my child's knock knees normal," here's what the pediatric research actually says, in plain language, so you can make a calm decision.
Full disclosure: we make kids' shoes, so we have a stake in this conversation. That's exactly why we lean on what pediatric and orthopaedic groups say rather than on our own opinion.
What's actually going on (and why it's usually okay)
Bow legs and knock knees aren't two problems so much as two stops on the same normal path. A child's legs naturally change shape as they grow, and the look at age 1 is different from the look at age 4. Knowing where your child is in that timeline takes a lot of the worry out of it.
Bow legs (genu varum)
This is the look most babies and young toddlers have: when they stand with their feet and ankles together, the knees stay apart and the lower legs curve outward. It often traces back to the curled position in the womb, where the bones had to rotate slightly to fit, and it's considered a normal part of early development. According to the American Academy of Orthopaedic Surgeons, this physiologic bowing usually begins to improve around 18 months and most often corrects on its own by about age 3. Nemours notes the legs typically go on to straighten by around age 7 or 8.
Knock knees (genu valgum)
As bow legs straighten, many children swing the other way into knock knees, usually somewhere around ages 2 to 4: the knees touch or nearly touch while the ankles stay apart. This too is a normal part of growth for most kids, and it generally eases on its own. According to Nemours/KidsHealth, knock knees usually get better by around age 7 or 8, as a child's legs settle into their more grown-up alignment.
The normal leg-shape timeline at a glance:
| Stage | What it looks like | Typical age | Usually straightens by |
|---|---|---|---|
| Bow legs (genu varum) | Knees apart, legs curve out | Birth to 2 yrs | ~Age 3 |
| Transition | Legs look straighter | ~Age 2 to 3 | n/a |
| Knock knees (genu valgum) | Knees together, ankles apart | ~Age 2 to 4 | ~Age 7 to 8 |
Sources: AAP HealthyChildren.org, Nemours/KidsHealth, AAOS OrthoInfo.
Will my child grow out of it?
In most cases, yes. Because both bow legs and knock knees come from the natural way growing legs change shape, they generally improve on their own as your child gets older, often without anyone doing anything at all. The American Academy of Pediatrics describes the usual path plainly: many children have bowing until about age two, then look knock-kneed until around age six, with legs straightening naturally by the teen years. Pediatric sources are consistent on this point: ordinary bow legs and knock knees are stages kids grow out of, not conditions that need to be "treated."
Do special shoes, inserts, or braces work?
This is the question most parents are really asking, so here it is plainly. For typical, both-sided bow legs and knock knees, pediatric sources don't routinely recommend corrective shoes, shoe inserts, wedges, or braces. The American Academy of Pediatrics states that bracing, corrective shoes, and exercise are rarely helpful for ordinary cases, and may even hinder a child's physical development and cause unnecessary stress. That's why most doctors no longer prescribe them for everyday cases.
In our view, a lot of "corrective" footwear marketing speaks to parental worry more than to the evidence. We're not telling you those products are harmful; we're pointing you to what the pediatric guidance actually says, which is that they aren't routinely recommended for normal leg development. For a parent, that often means a rigid, costly "fix" adds stiffness and expense without the benefit it promises.
(If your child's case is one-sided, severe, painful, or tied to another condition, your doctor may recommend specific care, including imaging or a referral. Always follow that advice over any general article, including this one.)
What helps natural development
If special shoes aren't the answer for typical cases, what does support healthy growth? Two simple things, neither of which is a product claim:
Barefoot time and free movement. Letting little feet and legs move on safe surfaces, walking, climbing, squatting, and playing, is part of how legs and gait develop naturally. The legs are getting the everyday loading and motion they're built for.
Shoes that don't get in the way. When shoes are needed, the goal at this age is simply not to restrict the foot. That means a shoe that's flexible (bends easily), foot-shaped with a wide toe box (toes can spread), flat from heel to toe (zero-drop), and light. A shoe like this doesn't steer or correct anything; it just stays out of the way while the legs grow along their own timeline.
When you should see a doctor
Bow legs and knock knees are usually harmless stages, but check in with your pediatrician if you notice any of these:
- Pain in the legs, knees, or hips
- One leg that bends much more than the other (one-sided)
- A bend that looks severe, or that's getting worse instead of better
- Bowing that's still clearly there after about age 2 to 3, or knock knees that aren't easing by about age 7
- A limp, frequent tripping, trouble walking, or a child who is very short for their age
None of these mean something is necessarily wrong; they're simply signs worth a professional look, since a doctor can rule out the less common causes, such as Blount's disease or rickets.
So what shoes should my bow-legged or knock-kneed toddler wear?
The short answer: a regular, well-fitting shoe that lets the toes spread and the foot move naturally. You don't need anything corrective or special for typical cases. Look for a flexible sole, a wide toe box, a flat (zero-drop) profile, and a secure velcro fit so it stays put.
Here's how the common options compare:
| "Corrective"/orthopedic shoes | Stiff conventional shoes | Foot-shaped (barefoot) shoes | |
|---|---|---|---|
| Straightens legs faster? | Not routinely recommended | No | No |
| Toe box | Often narrow | Tapered | Wide, foot-shaped |
| Sole | Rigid | Stiff | Flexible, zero-drop |
| Lets foot and legs move | Limited | Limited | Yes |
| Typical cost | $$$ | $$ | $$ |
If you'd like a starting point, our Joyo kids' shoes are built exactly this way, foot-shaped and flexible, so little feet have room to grow. They're everyday shoes, not corrective devices, and not a treatment for bow legs or knock knees. Every pair comes with our free first-exchange fit guarantee.
Related toddler foot questions
- In-toeing (pigeon toes): what's normal and when to look closer
- Flat feet in toddlers: what's normal and when to look closer
- When to worry about your toddler's feet
- Our full guide to barefoot shoes for kids
FAQ
Are bow legs normal in toddlers?
Yes. Bow legs, where the knees stay apart and the lower legs curve outward, are a normal look for babies and young toddlers, often from the curled position in the womb. According to pediatric and orthopaedic sources, even bowing on both sides usually starts improving around 18 months and corrects on its own as a child grows, commonly by around age 3. If the bend is severe, one-sided, painful, or not improving, check with your pediatrician.
Are knock knees normal in young children?
Usually, yes. Many children move from bow legs into knock knees, where the knees touch but the ankles stay apart, around ages 2 to 4. For most kids this is a normal part of growth that eases on its own, with legs looking more typical by about age 7 to 8. A doctor's look is worth it if it's severe, one-sided, painful, or not improving.
At what age do bow legs and knock knees straighten out?
For most children, bow legs improve by about age 3, the legs look straighter for a while, knock knees often appear around ages 2 to 4, and the legs settle into their grown-up alignment by roughly age 7 to 8. Every child is a little different. It's worth a doctor's look if your child is well outside this pattern.
Do special shoes or braces fix bow legs or knock knees?
For typical, both-sided cases, pediatric sources don't routinely recommend corrective shoes, inserts, or braces. The American Academy of Pediatrics notes that bracing, corrective shoes, and exercise are rarely helpful and may even hinder development, because ordinary cases straighten on their own. A normal, flexible, foot-shaped shoe is generally all that's needed. Less typical cases are different and should follow a doctor's guidance.
Are barefoot shoes okay for a bow-legged or knock-kneed child?
Foot-shaped, flexible shoes let the foot move naturally and don't restrict it the way stiff shoes can. They aren't a treatment for bow legs or knock knees, but they suit the everyday needs of a growing foot and leg. If your child has a diagnosed condition, follow your doctor's guidance over any general article.
When should I worry about my child's bowed or knocked legs?
It's worth a doctor's look if the bend is painful, clearly one-sided, severe, or getting worse, if bowing is still strong after about age 2 to 3, if knock knees aren't easing by about age 7, or if your child limps, trips often, or is very short for their age. Otherwise, it's typically just a normal stage to keep a calm eye on.
What's the single best shoe feature for a child's growing legs?
Flexibility. A sole that bends easily, paired with a wide toe box and a flat zero-drop profile, lets the foot move and the legs grow along their own timeline, which is what kids at this age benefit from most.
Sources
- American Academy of Orthopaedic Surgeons (OrthoInfo): Bowed Legs (Genu Varum, Blount's Disease)
- American Academy of Pediatrics (HealthyChildren.org): Bowlegs and Knock-Knees
- Nemours KidsHealth: Bow Legs (Genu Varum)
- Nemours KidsHealth: Knock Knees (Genu Valgum)
By the Joyo Barefoot Team. We research barefoot footwear; we are not physicians. The medical points above are cited from the AAP, AAOS, and Nemours/KidsHealth, accessed June 2026.
📋 A quick note. This article is general educational information, not medical advice, and isn't a substitute for your child's pediatrician. Joyo makes everyday foot-shaped shoes, not medical or corrective devices; they are not intended to diagnose, treat, cure, or prevent any condition. See a doctor if your child has pain, a one-sided bend, worsening symptoms, a limp, or trouble walking.
