Leg deformities in children: when it's normal and when treatment is needed

It is important to understand that not every deviation is a disorder.

In childhood, the shape of the legs changes as the child grows, and this is part of normal development. But there are conditions that need monitoring and treatment, and it is important not to miss the right moment.

Parents most often notice one of two patterns:

• bow legs (when the knees don't touch)
• knock knees (when the knees touch but the feet don't)

At an early age, this can be a variant of normal.

There are certain stages of development:

• up to 1.5–2 years, bow legs are more common,
• by 3–4 years, knock knees may appear,
• and by 6–7 years, the legs usually straighten out.

If a child goes through these stages without marked deviations, there is usually no cause for concern.

But there are situations when it's better not to wait.

You should see a doctor if the deformity is pronounced, persists beyond the age norm, is asymmetrical, if the child tires quickly when walking, complains of pain, or you notice a change in their gait.

Leg deformities can have various causes: growth patterns, weak muscles and ligaments, deficiencies (for example, vitamin D), excess weight or orthopedic conditions.

That's why there is no universal "advice from the internet" here — the first step is to understand the cause.

At the appointment, the doctor assesses the shape of the legs, symmetry, gait, foot position and the child's overall development.

If needed, additional tests are ordered, most often an X-ray. This helps distinguish a variant of normal from a condition that requires treatment.

The approach is always individual. In most cases, it involves monitoring over time, therapeutic exercise, adjusting physical load and building good movement habits. Work on the feet is added if needed.

Parents often ask about orthopedic shoes, insoles and massage.

It is important to understand that shoes alone do not treat a deformity, insoles are prescribed only when indicated, and massage can be a useful addition but not the basis of treatment. The main focus is on active correction rather than passive methods.

Surgery is rarely needed.

It is usually considered for marked deformities that progress and do not respond to conservative treatment, or that affect gait and the joints. But before that stage, all possible gentle methods are always used.

The most important thing is not to delay. In childhood, bones are actively growing, which makes it possible to correct the problem faster and more easily, without complex procedures.

At the Children's National Medical Center, the child is assessed comprehensively.

If needed, an orthopedist, neurologist and rehabilitation specialist are involved in treatment, and decisions are made with the full picture in mind.

All diagnostics are available in one place — X-ray, MRI, MSCT.

This makes it possible to make an accurate diagnosis quickly and start the right treatment right away, without losing time or unnecessary prescriptions.

We use an evidence-based approach and tailor the treatment plan to each child.

At the bottom of the page you can choose a doctor, see their experience and book an appointment at a convenient time.