Flexible Flat Feet

What are flexible flat feet?

Flexible flat feet describe a foot shape where the arch is low or absent when standing but reappears when the child stands on tiptoes or sits with the foot relaxed. It's an extremely common pattern, particularly in younger children whose feet haven't yet developed their adult shape.

It's almost always a normal variation rather than a problem. Many children with flexible flat feet have no symptoms whatsoever and develop a typical adult foot shape over time. Even those whose flat feet persist into adulthood often function entirely normally without pain.

The clinical picture changes when flat feet are rigid (don't reform an arch on tiptoes), painful, or associated with other concerning features. These warrant a different sort of assessment.

What does it feel like?

Most children with flexible flat feet have no symptoms at all. When concerns arise, they typically include:

• Visibly flat-looking feet on standing

• Inward rolling of the ankles

• Sometimes tiredness or aching after long activity

• Concerns about shoe wear or appearance

• Occasionally, foot pain — though this prompts more careful assessment

Pain in a child with flat feet — particularly persistent or severe pain — should be assessed properly because most flexible flat feet are pain-free.

How is it diagnosed?

Examination is the foundation. The key feature of flexible flat feet is that the arch reappears on tiptoes — confirming flexibility. Other components include checking ankle and foot motion, looking at the shape of the heel, and assessing the overall lower limb posture.

Imaging isn't routinely needed for flexible flat feet without symptoms. X-rays may be considered when there are atypical features, persistent pain, or concerns about other diagnoses.

The assessment also looks for features that might suggest an underlying cause — neurological, connective tissue or other conditions that occasionally produce a flat foot picture.

What are the treatment options?

Asymptomatic flexible flat feet need no treatment. Reassurance, normal shoe choice and watching the natural progression are usually enough.

Symptomatic flat feet — typically painful or associated with significant tiredness — may benefit from supportive footwear, orthotic insoles or targeted physiotherapy. Surgery is rarely needed for flexible flat feet and is reserved for specific situations. Nev will work through what's right for your child at your consultation.

When should you get it checked?

Seek a specialist assessment if:

• Your child has persistent foot pain alongside flat feet

• The flat foot is rigid (no arch reforms on tiptoes)

• There's significant asymmetry between the two feet

• Walking or running ability seems to be affected

• You'd like reassurance and a clear understanding of what's going on

Most flexible flat feet need nothing more than confidence that they're normal. A clear assessment provides that — and identifies the small minority that need active attention.