How Do You Know If You Have Flat Feet?
Have you ever looked at your feet and wondered, "Do I have flat feet?"
Maybe your arches don't seem very visible. Maybe your shoes wear down unevenly. Or perhaps your feet feel tired and painful after standing or walking for long periods.
Flat feet are common, and having a low or flattened arch isn't automatically a problem.
Some people have flat feet and experience no pain or difficulty with movement at all. Others may develop foot fatigue, discomfort, or changes in the way they walk.
So how can you tell if you have flat feet—and when should you do something about it?
Let's take a closer look.
What Are Flat Feet?
Flat feet, also known as pes planus, occur when the arches along the inside of the feet are lower than usual or appear to flatten when standing.
Normally, the arch helps distribute body weight and absorb forces as you stand and move.
With flat feet, more of the sole may come into contact with the ground.
Flat feet can be:
Flexible, where an arch may be visible when the foot isn't bearing weight but flattens when standing
Rigid, where the arch remains flattened even when the foot is not bearing weight
The distinction is important because different types of flat feet can have different causes and may require different approaches.
What Does a Normal Foot Arch Look Like?
There isn't one single "perfect" foot shape.
Arch height naturally varies from person to person, and some people naturally have lower arches without experiencing any problems.
Instead of focusing only on how your feet look, it's more useful to consider how your feet function.
A low arch becomes more clinically relevant when it is associated with symptoms such as:
Foot pain
Excessive fatigue
Difficulty walking or running
Poor balance
Recurrent injuries
Problems with footwear
In other words, having flat feet doesn't automatically mean something is wrong.
How Can You Tell If You Have Flat Feet?
There are several simple signs that may suggest you have low or flattened arches.
1. Look at Your Feet While Standing
Stand naturally and look at the inside of your feet.
If most of the inside edge of your foot appears to contact the floor, you may have a low arch.
However, visual inspection alone isn't enough to determine whether your feet are functioning properly.
2. Check Your Footprint
One simple at-home observation involves looking at the shape of your footprint after stepping on a surface that shows moisture.
A typical higher arch may leave a noticeable gap along the inside of the foot.
A flatter foot may leave more of the sole visible in the footprint.
However, this is only a basic screening method—not a diagnosis.
3. Look at Your Shoes
Your shoes can provide useful clues about how your feet move.
Check the soles of your frequently worn shoes.
Uneven wear, particularly excessive wear along certain areas, may indicate differences in how you distribute your weight or move through each step.
4. Pay Attention to Foot Fatigue
Do your feet feel extremely tired after a normal day of walking or standing?
Low arches can sometimes contribute to increased strain on the muscles and tissues that support the foot.
You may notice:
Aching arches
Heel discomfort
Tired feet
Pain after prolonged standing
Discomfort after exercise
What Are the Common Symptoms of Flat Feet?
Many people with flat feet have no symptoms at all.
When symptoms do occur, they may include:
Arch Pain
Discomfort along the inside of the foot, particularly after prolonged activity.
Heel Pain
Flat feet can sometimes be associated with increased mechanical stress around the heel.
Foot Fatigue
The feet may feel tired or heavy after standing or walking for long periods.
Ankle Discomfort
Changes in foot mechanics can affect how the ankle moves and bears weight.
Knee or Hip Discomfort
Changes in lower-limb alignment may influence how forces travel through the legs.
Lower Back Discomfort
In some individuals, changes in foot mechanics may contribute to altered movement throughout the kinetic chain.
Why Do Some People Have Flat Feet?
Flat feet can have several different causes.
Some people naturally have lower arches, while others develop changes over time.
Potential factors include:
Genetics
Natural development during childhood
Foot structure
Ligament or tendon problems
Injury
Increased body weight
Age-related changes
Certain medical conditions
This is why simply looking at the shape of your foot doesn't tell the whole story.
Are Flat Feet Bad?
Not necessarily.
This is one of the most important things to understand about flat feet.
Flat feet are not automatically a problem.
Many people with flat feet walk, run, exercise, and participate in sports without experiencing any significant issues.
Treatment or additional support may become appropriate when flat feet are associated with:
Persistent pain
Functional limitations
Recurrent injuries
Significant instability
Difficulty participating in normal activities
The goal isn't necessarily to "create" an arch.
The goal is to ensure your feet are functioning comfortably and efficiently.
Can Flat Feet Cause Other Problems?
In some people, changes in foot mechanics associated with flat feet can influence movement throughout the lower body.
Because the feet are connected to the ankles, knees, hips, and pelvis through the kinetic chain, altered foot mechanics may affect how forces are distributed.
Depending on the individual, this may contribute to:
Ankle instability
Knee discomfort
Shin pain
Hip discomfort
Lower back strain
However, foot shape alone does not prove that it is the cause of pain elsewhere in the body.
A proper assessment is important to determine whether there is actually a biomechanical connection.
Do You Need Insoles If You Have Flat Feet?
Not necessarily.
If you have flat feet but don't experience pain or functional problems, you may not need orthotics at all.
However, if your flat feet are associated with persistent discomfort or biomechanical issues, appropriate foot support may help.
Custom orthotics can be designed to:
Support the foot
Improve pressure distribution
Manage excessive foot motion
Improve stability
Reduce mechanical stress on specific areas
The appropriate design depends on the individual.
That's why simply buying an "arch support" based on your foot shape isn't always the best solution.
When Should You Get Your Feet Assessed?
Consider getting a professional biomechanical assessment if you experience:
Persistent Foot Pain
Pain that keeps returning despite rest or changing footwear deserves further evaluation.
Pain During Running or Exercise
If your feet consistently hurt during physical activity, understanding the underlying mechanics may help.
Recurring Injuries
Repeated foot, ankle, knee, or lower-limb injuries may warrant a closer look at your movement patterns.
Uneven Shoe Wear
Significant differences in shoe wear can provide clues about how you move.
Difficulty Standing or Walking for Long Periods
If your feet become painful or excessively fatigued during everyday activities, additional support may be worth exploring.
How FOOTLAB Assesses Flat Feet
At FOOTLAB, we don't evaluate flat feet based solely on appearance.
Our approach looks at how your feet function.
Depending on your needs, the assessment may include:
Biomechanical Assessment
We evaluate foot structure, posture, and lower-limb alignment.
Digital Foot Scanning
Advanced scanning technology provides detailed information about the shape and characteristics of your feet.
Dynamic Pressure Analysis
Pressure mapping helps identify how your body weight is distributed across your feet during standing and movement.
Gait Assessment
We evaluate how your feet function while walking and identify movement patterns that may contribute to discomfort.
If custom orthotics are appropriate, the assessment findings can help guide the design of a solution specific to your needs.
FREQUENTLY ASKED QUESTIONS
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Flat feet aren't always something that needs to be "fixed." Many people have naturally low arches without symptoms. When flat feet cause pain or functional problems, treatment focuses on improving comfort and function rather than simply changing the appearance of the arch.
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Yes. Some adults develop changes in their arches over time due to factors such as injury, changes in body weight, tendon or ligament problems, and age-related changes.
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Absolutely. Many people with flat feet have no symptoms and can remain active without requiring treatment.
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Not automatically. Flat feet are common during childhood and may change as the child develops. Orthotics may be considered when a child experiences persistent pain, functional limitations, or other concerning symptoms.
The Bottom Line
Having flat feet doesn't automatically mean you have a problem.
The more important question isn't simply "How flat are my feet?"
It's:
"How are my feet functioning?"
If you have low arches but can walk, run, and stay active comfortably, you may not need any intervention.
But if your flat feet are accompanied by persistent pain, excessive fatigue, instability, or recurring injuries, a professional assessment can help determine whether your foot mechanics are contributing to the problem.
At FOOTLAB, we look beyond the appearance of your feet to understand how they function during movement.
Book your FREE Biomechanical Assessment at FOOTLAB and discover what your feet are telling you.
