Bowlegs & Knock Knees

What Are Bowlegs and Knock Knees?

Kids grow fast—and so do their legs! But sometimes, parents notice their child’s legs seem to curve a little too much. This might look like:

  • Bowlegs (Genu Varum): Legs curve outward like a bow, knees stay apart when ankles touch.
  • Knock Knees (Genu Valgum): Knees touch but the ankles stay apart, making the legs angle inward.

These are common in toddlers, and often part of normal development. But when should you worry? Let’s find out.


How to Recognize It at Home

Age-Based Signs

AgeCommon Pattern
0–2 yrsBowlegs are normal
2–4 yrsLegs may appear straightening
3–7 yrsKnock knees can show up
7+ yrsLegs should straighten out

Red flags to watch for:

  • One leg curved more than the other
  • Persistent bowing or knocking after age 7
  • Pain in knees or hips
  • Difficulty walking or running
  • Frequent tripping or limping

What Causes It?

Normal Growth

  • Most kids outgrow bowlegs and knock knees naturally as they grow.

Other Causes

  • Rickets (Vitamin D deficiency)
  • Bone infections or injuries
  • Genetic bone disorders
  • Obesity, which may worsen knee alignment

When to See a Pediatric Orthopedic Specialist?

Book an appointment if:

  • The condition worsens with age
  • It affects your child’s posture or walking
  • There’s pain, swelling, or imbalance
  • You notice unusual gait or leg length difference

Diagnosis & Evaluation

Your child’s doctor may suggest:

  • Physical examination of legs and gait
  • X-rays to check bone alignment
  • Vitamin D and calcium tests, if rickets is suspected

Treatment Options

1. No Treatment (Observation)

In mild cases and early age, just watching growth and doing regular check-ups may be enough.

2. Vitamin Supplements

If rickets or deficiency is the cause, your doctor may prescribe Vitamin D, calcium, and sunlight exposure.

3. Bracing or Orthotics

In growing kids with moderate cases, leg braces or night splints may help correct the angle.

4. Physiotherapy

Custom exercises can improve muscle strength and balance, especially if gait is affected.

5. Surgical Correction

Rarely needed, but in severe or untreated cases after age 10, guided growth surgery or osteotomy may be recommended.


Parent Tips

  • Encourage daily play and outdoor time ☀️
  • Include calcium-rich foods like milk, paneer, and leafy greens
  • Don’t panic—mild curves are usually part of normal growth
  • Choose soft, well-fitting shoes for toddlers
  • Avoid self-diagnosis—get an expert opinion for peace of mind

Dr. Rajesh’s Advice

At OrthoKid, we see many concerned parents about leg shape. Remember—early identification and right care can make all the difference. Let’s walk your child through growth confidently and pain-free!

May 19, 2025
Bow legs & Knock knees in kids

Recognising and Treating Bowlegs and Knock Knees in Children

What Are Bowlegs and Knock Knees? Kids grow fast—and so do their legs! But sometimes, parents notice their child’s legs seem to curve a little too […]