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Toe walking, in-toeing, bowlegs, or knock knees

Also called: In-toeing, bowlegs, knock knees, toe walking

Toe walking, in-toeing, bowlegs, or knock knees are common in young children and usually improve with growth. Pain, limping, or one-sided differences should be checked.

Common causesNormal development
Usually serious?Usually not
Get checked ifPain, limping, or one side
If you think it's an emergency, call 911.Possible poisoning or something swallowed? Call Poison Control at 1-800-222-1222.

Overview

Bowlegs are normal until about age 2, and knock knees until about 7.

Toe walking past age 3 should be checked.

When to get medical care

Call 911Not an emergency.
Get care todayNot usually urgent.
See a doctor soonPain, limping, one-sided changes, or toe walking after 3.

Causes

Causes include normal development, tight tendons, and rarely rickets or nerve conditions.

OwieClear has pages on 1 condition that can cause toe walking, in-toeing, bowlegs, or knock knees. Each shows how soon to get care.

Common causes

What you can do at home

  • Let kids play and grow.

Medicines

Usually none needed.

At the doctor

Diagnosed by exam.

Questions you may be asked

  • Age
  • Development

The exam

A leg exam.

Tests

  • X-rays if needed

Prevention

Not preventable.

  • Check development

Check your symptoms

Most symptoms have more than one possible cause. The symptom checker looks at all of your symptoms together, plus your age, and shows how soon to get care.

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Sources

Last updated 2026-11-13.