Can Flat Feet Become Normal? Understanding Arch Development

Can Flat Feet Become Normal?

Yes, flat feet can become less pronounced as a child grows and the foot arch develops.

Young children commonly have feet that appear flat because their bones, joints and soft tissues are still developing. A fat pad along the inside of a young child's foot can also make the arch less visible.

As children grow, the medial longitudinal arch generally becomes more apparent.

The American Academy of Pediatrics explains that babies are often born with flat feet and that the arch may develop as the feet become less flexible during childhood.

OrthoKids similarly explains that most children are born with flat feet and that an arch usually develops during the first decade, although some children continue to have flexible flat feet into adulthood without experiencing pain or functional problems.

So the short answer is:

Yes, many children naturally develop an arch as they grow, but not every child will develop a prominent arch—and a persistent flat foot is not automatically abnormal.

Do Flat Feet Go Away With Age?

They can become less flat-looking as children grow, but there is no single age at which every child's feet should suddenly develop an arch.

Foot development is gradual and varies between individuals.

Research examining typical pediatric foot development found a consistent trend toward reduced flat-foot posture with increasing age, but also noted that there is no universally agreed age at which foot development completely stops.

Another longitudinal study followed children around ages 6.7 and 8.2 and found that some children who initially had flat feet developed a measurable arch during that period, while others remained flat-footed.

This means that:

A flat foot at one age does not necessarily predict what the foot will look like later.

Can Children Outgrow Flat Feet?

Yes, many children with flexible flat feet develop a visible arch as they grow.

OrthoKids reports that approximately 80–90% of children with flexible flat feet may outgrow the flat-foot appearance, while some continue to have flat feet into adulthood.

However, “outgrow” should not be interpreted as meaning that every child's foot will eventually look identical to an adult's foot.

Some people naturally have relatively low arches throughout life and remain completely comfortable and active.

A systematic review of pediatric foot development also highlights substantial variation in how and when the arch develops.

Therefore:

The goal isn't necessarily to make every child's foot look highly arched. The more important consideration is whether the foot is developing normally and functioning comfortably.

When Do Foot Arches Develop?

The foot arch develops progressively during childhood rather than appearing at one specific age.

The medial longitudinal arch begins developing as children start standing and walking. During early childhood, the foot is still undergoing substantial skeletal and soft-tissue development.

Research has identified particularly noticeable changes during the early years. One study examining children's footprints found rapid progression of plantar arch development between approximately ages 2 and 6.

Other research has found that measurable changes continue through later childhood and early adolescence. A large study involving more than 10,000 children found changes in foot length and arch-height measures across childhood and adolescence, with increases in arch-height ratio becoming more apparent during later childhood in both boys and girls.

Is there a specific age when a child's arch should appear?

Not exactly.

Different studies use different ways of measuring the arch, and children develop at different rates.

For this reason, it is better to think about arch development as a process rather than expecting a particular arch height at a particular birthday.

Why Are Babies Born With Flat Feet?

Flat-looking feet are normal in babies.

Several factors contribute to this appearance.

A developing foot structure

The bones and joints of a baby's foot are still developing.

A natural fat pad

Young children have a soft fat pad along the inner portion of the foot that can obscure the appearance of the arch.

Flexible joints and soft tissues

Young feet are relatively flexible, allowing the foot to flatten when the child stands.

The American Academy of Pediatrics explains that babies are often born with flat feet because their bones and joints are flexible and because the fat pad along the inner border of the foot can hide the arch.

This is one reason why a baby's footprint should not be interpreted using the same standards used for an adult foot.

Why Do Toddlers Have Flat Feet?

Flat-looking feet are common in toddlers.

At this stage, the foot is still developing and the arch may not yet be visibly pronounced.

A toddler's foot may also appear particularly flat while standing because the flexible foot spreads under body weight.

The arch may become easier to see when the child:

• Sits down

• Has the foot off the ground

• Stands on tiptoes

This is characteristic of a flexible flat foot.

OrthoKids describes flexible flat feet as feet where the arch disappears during standing but reappears when the child is sitting or standing on tiptoes.

What Are Flexible Flat Feet?

Flexible flat feet are feet that appear flat when standing but show an arch when the foot is not bearing weight or when the child stands on tiptoes.

This is different from a rigid flat foot.

Flexible flat foot

Standing: arch appears reduced or absent.

Sitting: arch becomes visible.

Tiptoes: arch generally reappears.

Rigid flat foot

The arch remains relatively flat regardless of position.

A flexible flat foot is often a normal variation in children, particularly when it is painless and does not interfere with activity.

OrthoKids states that most children with flexible flat feet have no pain or problems with walking and can participate in sports and physical activities normally.

Can Flexible Flat Feet Become Normal?

Yes. Many flexible flat feet become less flat-looking as the child grows and the medial arch develops.

However, some children continue to have flexible flat feet.

That does not automatically mean they have a foot problem.

OrthoKids notes that even adults whose flexible flat feet persist can often walk, participate in sports and wear regular footwear without difficulty.

The key factors are therefore not simply:

“Is there an arch?”

but also:

• Is the foot flexible?

• Is there pain?

• Is the child able to walk normally?

• Can the child participate in activities?

• Is the foot becoming progressively different?

• Is one foot substantially different from the other?

Are Flat Feet Normal in Children?

Flat feet are often normal in young children.

A systematic review of pediatric foot development concluded that typically developing children are born with flexible flat feet and progressively develop the medial longitudinal arch during the first decade.

The American Academy of Pediatrics similarly notes that many children naturally develop an arch during childhood.

However, “normal” does not mean that every presentation of flat feet should be ignored.

A child should be assessed if flat feet are associated with:

• Persistent pain

• Stiffness

• Significant functional limitations

• Pressure sores or shoe rubbing

• A rapidly changing foot shape

• Significant asymmetry

OrthoKids specifically recommends evaluation when flexible flat feet cause pain, pressure sores, shoe rubbing or stiffness.

When Should a Child's Arch Develop?

There isn't a universal deadline.

The medial longitudinal arch develops progressively during childhood, and research has identified substantial variation between individuals.

OrthoKids states that the arch usually develops by around age 10, while other research has found measurable changes continuing through later childhood and adolescence.

A recent pediatric flatfoot consensus document similarly describes the first decade as the main period of spontaneous arch development and recommends clinical reassessment around ages 8–10 for children with persistent flexible flat feet, particularly when symptoms or functional problems are present.

Therefore, rather than asking:

“Should my child's arch have appeared by exactly age X?”

it is more useful to consider:

“Is the foot flexible, comfortable and functioning normally?”

Can Flat Feet Correct Themselves?

Many flexible flat feet in children improve naturally without treatment.

This is particularly true when the child has no pain or functional limitations.

A recent consensus on pediatric flexible flatfoot recommends observation for asymptomatic flexible flat feet in young children and states that routine orthoses or corrective footwear are not supported for changing the natural development of an asymptomatic arch.

OrthoKids similarly states that most flexible flat feet do not require treatment when they are painless.

This is important because parents sometimes assume that a flat-looking foot automatically needs to be “corrected.”

It doesn't.

Can Arch Support Make Flat Feet Go Away?

Arch-support products should not be assumed to permanently change the natural shape of an asymptomatic child's foot.

This distinction is important.

Arch support may sometimes be used to improve comfort when a child with flexible flat feet experiences arch pain. But that is different from claiming that an insert will create a permanent anatomical arch.

OrthoKids states that there are no shoes, inserts, arch supports or exercises shown to make flexible flat feet disappear or change their shape. It also notes that soft inserts may help children or teenagers who experience arch pain.

A study evaluating corrective shoes in children with moderate flexible flat feet also investigated whether such footwear changed the natural development of the medial longitudinal arch, highlighting the distinction between supporting symptoms and changing developmental anatomy.

When might support be useful?

Support may be considered when a child has symptoms such as:

• Arch discomfort

• Foot fatigue

• Activity-related pain

• Shoe discomfort

The appropriate option depends on the child's symptoms and clinical assessment.

Does Walking Help Develop Foot Arches?

Normal standing, walking and physical activity are part of a child's natural development, but it would be inaccurate to say that a particular exercise or walking routine will guarantee the development of an arch.

Arch development involves the maturation of the bones, joints, muscles and connective tissues of the foot.

Longitudinal research has associated changes in arch development with maturation and motor-control changes, rather than showing that one particular exercise creates an arch.

Children with painless flexible flat feet generally do not need to avoid normal physical activity.

OrthoKids states that children with flexible, painless flat feet can participate in sports and gym activities.

Can Exercise Fix Flat Feet in Children?

Exercise should not be presented as a guaranteed method of creating an anatomical arch.

For a child with painless flexible flat feet, there may be no need to “fix” the foot at all.

If a child has pain, limited mobility or another underlying issue, a healthcare professional may recommend specific exercises or stretches based on the cause.

For example, OrthoKids notes that heel-cord stretching can help when tight Achilles tendons contribute to pain during activity.

The important distinction is:

Exercise for function or symptoms ≠ guaranteed arch formation.

Does Having Flat Feet Mean Something Is Wrong?

Not necessarily.

A child can have flat feet and still have:

• Normal walking

• Normal running

• Normal participation in sports

• No pain

• Good mobility

• No functional limitations

In such cases, the flat appearance may simply be part of the child's foot structure.

OrthoKids notes that most children with flexible flat feet do not have pain or walking problems and can participate in normal activities.

What Is the Difference Between Flat Feet and Low Arches?

The terms are sometimes used interchangeably, but they don't always describe exactly the same thing.

A low arch describes the height or appearance of the medial longitudinal arch.

Flat foot generally describes a foot posture in which the arch appears reduced or absent, particularly during weight-bearing.

A flexible flat foot may show an arch when unloaded.

If you want to understand low arches specifically, see: What Is a Low Foot Arch? Causes, Signs & Support Options

If you want to compare normal, low and high arches, see: Normal Arch vs Low Arch vs High Arch: What's the Difference?

These distinctions are important because Article 16 is about developmental change, rather than defining every type of low arch.

How Can Parents Check a Child's Arch at Home?

Parents can make simple observations, but an at-home check should not be treated as a medical diagnosis.

Check the foot while standing

Look at the inside of the foot while the child stands naturally.

Check the foot while sitting

Compare the arch when the foot is not bearing weight.

Ask the child to stand on tiptoes

If appropriate and safe, observe whether an arch becomes visible.

A flexible flat foot commonly shows an arch when sitting or standing on tiptoes.

Compare both feet

Look for major differences between the right and left foot.

Observe function

Pay attention to:

• Walking

• Running

• Balance

• Sports participation

• Complaints of pain

• Shoe rubbing

For a general explanation of different arch types, see: What Are the Different Types of Foot Arches?

For a home-based assessment of your own arch, see: How to Tell What Type of Foot Arch You Have

Should You Use the Wet Foot Test on a Child?

A wet footprint can show how much of the foot contacts the ground, but it should not be used by itself to determine whether a child's foot is developing normally.

A footprint is affected by:

• Age

• Weight-bearing

• Foot flexibility

• Foot position

• Measurement method

Research on pediatric foot development has emphasized that different assessment methods can produce different measurements and that there is no single universally accepted measure for determining the end of pediatric arch development.

So a wet-foot test can be an educational observation—not a diagnosis.

When Should You Worry About a Child's Flat Feet?

Flat feet deserve closer attention when they are accompanied by symptoms or unusual characteristics.

Consider consulting a pediatrician, podiatrist or orthopedic professional if your child has:

Persistent pain

Especially pain in the arch, heel, ankle or foot.

Stiff feet

A rigid or stiff flat foot is different from a flexible flat foot.

Difficulty walking or running

Changes in normal activity can be more important than the visual appearance of the arch.

Problems participating in sports

Pain or fatigue that repeatedly limits activity deserves attention.

Shoe rubbing or pressure sores

OrthoKids specifically identifies pressure sores and shoe-rubbing problems as reasons to have a child's feet evaluated.

One foot looks significantly different

Marked asymmetry can warrant professional assessment.

The foot appears to be changing rapidly

A rapidly progressive change is different from gradual childhood development.

Can Flat Feet Become Normal in Teenagers?

The answer depends on what “normal” means.

Some children develop a visible arch during childhood and adolescence.

Others continue to have flexible flat feet without pain or functional limitations.

Large-scale research on children and adolescents shows that arch measurements continue to change during growth, with different patterns across age groups and between boys and girls.

Therefore, a teenager having a relatively low arch does not automatically mean the foot is unhealthy.

Symptoms and function remain important.

Can Flat Feet Become Normal in Adults?

If someone has had flexible flat feet since childhood, they may continue to have a relatively low arch into adulthood without experiencing problems.

OrthoKids notes that even adults with persistent flexible flat feet are often able to walk, participate in sports and work without difficulty.

This is different from developing a new or progressively worsening flat foot during adulthood.

If an adult's arch has changed recently, particularly with pain or weakness, that is a separate issue and should be evaluated in the context of the individual's symptoms and history.

For that topic, see: Can Your Foot Arch Change Over Time

Flat Feet in Children: What Parents Should Remember

A child's foot can look very different from an adult's foot.

The absence of a visible arch in a young child is often part of normal development.

The most useful questions are:

1. Is the foot flexible?

2. Is the child experiencing pain?

3. Can the child walk and run normally?

4. Can the child participate in physical activities?

5. Are both feet broadly similar?

6. Is the foot developing gradually rather than changing rapidly?

If the answers are reassuring, a flat-looking foot may simply represent normal development.

If symptoms or functional problems are present, professional assessment is more appropriate than trying to correct the arch based on its appearance alone.

Key Takeaways

• Yes, many children naturally develop an arch as they grow.

• Flat feet are common in babies and young children.

• The medial longitudinal arch develops progressively, particularly during the first decade of life.

• There is no single age at which every child's arch must appear.

• Many flexible flat feet become less flat-looking during childhood.

• Some children continue to have flexible flat feet into adulthood without pain or functional limitations.

• A flexible flat foot generally shows an arch when the foot is unloaded or when standing on tiptoes.

• A painless flexible flat foot usually does not require treatment.

• Arch supports and corrective footwear should not be assumed to permanently create an anatomical arch in an asymptomatic child.

• Persistent flat feet are more important to investigate when they are painful, stiff, asymmetric or affecting activity.

• Foot function and symptoms are generally more meaningful than arch appearance alone.