Overview

Flat foot, also known as pes planus or fallen arches, is a common condition where the arch on the inside of the foot is flattened, allowing the entire sole to touch the floor when standing. While many individuals with flat feet experience no pain or problems, for others, it can lead to discomfort, affect alignment, and contribute to issues in the ankles, knees, hips, or back due to changes in the body’s biomechanical chain. Understanding flat feet is the first step towards managing any associated symptoms effectively here in Singapore.

Flat foot causing pain and instability

Symptoms

Symptoms associated with flat feet can vary widely. Some people have no symptoms, while others may experience:

  • Foot Pain: Aching or fatigue, particularly in the arch, heel, or along the inner ankle. Pain often worsens with activity or prolonged standing.
  • Leg and Back Pain: Discomfort in the shins, knees, hips, or lower back due to altered alignment and gait.
  • Swelling: Mild swelling along the inside of the ankle.
  • Stiffness: Feet may feel stiff or lack flexibility.
  • Overpronation: The ankle tends to roll inward excessively when walking or running.
  • Uneven Shoe Wear: Shoes may wear out more quickly on the inner side.
  • Difficulty Standing on Tiptoes: Reduced strength or stability in the foot arch.
Flat Foot

If you experience persistent pain, fatigue, or notice changes in your gait, consulting a podiatrist is advisable.

Causes and Risk Factors

Flat feet can be present from childhood (flexible flat foot, often outgrown) or develop later in life (acquired flat foot). Contributing factors include:

  • Genetics: Flat feet often run in families.
  • Tendon Issues: Injury, inflammation, or dysfunction of the posterior tibial tendon (a key arch-supporting tendon) is a common cause of acquired flat foot in adults.
  • Arthritis: Conditions like rheumatoid arthritis can affect foot joints and ligaments.
  • Injury: Foot or ankle injuries (fractures, dislocations) can lead to fallen arches.
  • Age: Wear and tear over time can weaken tendons and ligaments.
  • Obesity: Excess weight puts significant strain on the arches.
  • Diabetes: Nerve damage (neuropathy) can weaken foot muscles.
  • Pregnancy: Hormonal changes and weight gain can temporarily or permanently affect foot structure.
Flat foot compared to normal foot arch

If you experience persistent pain, fatigue, or notice changes in your gait, consulting a podiatrist is advisable.


Complications

Untreated symptomatic flat feet can lead to various complications, including:
  • Chronic Pain: Persistent foot, ankle, knee, hip, or back pain.
  • Altered Biomechanics: Changes in walking patterns can strain other joints and muscles.
  • Increased Risk of Injury: Conditions like plantar fasciitis, shin splints, Achilles tendonitis, and bunions may be more likely.
  • Difficulty with Activities: Pain and instability can limit participation in sports or even daily tasks.
  • Arthritis: Abnormal stress on foot and ankle joints can accelerate arthritic changes.
Early management can help mitigate these potential issues.

Diagnosis

Diagnosing flat feet and determining if they are the cause of your symptoms involves:

  1. Medical History & Symptom Review: Discussing your pain, activity levels, family history, and any previous injuries.
  2. Physical Examination: Our podiatrist will observe your feet while you stand and sit, check the arch height, look for signs of overpronation, assess tendon strength, and check joint range of motion.
  3. Gait Analysis: Observing how you walk to identify biomechanical abnormalities.
  4. Shoe Wear Pattern: Examining your shoes can provide clues about foot mechanics.
  5. Imaging (Occasionally): X-rays may be used to assess bone alignment and rule out arthritis or other issues. MRI or CT scans might be needed if tendon injury is suspected.

A thorough assessment at our Singapore clinic helps determine the underlying cause and guides the treatment plan.

Treatment Options

Treatment for flat feet focuses on relieving symptoms and improving foot function, especially if the condition is causing pain or affecting mobility. Many people require no treatment.

Non-Surgical Treatments

Conservative management is effective for most symptomatic cases:

  • Supportive Footwear: Choosing well-structured shoes with good arch support and cushioning.
  • Orthotic Devices: Custom-moulded or appropriate over-the-counter arch supports (insoles) to support the arch, improve alignment, and reduce strain.
  • Stretching Exercises: Targeting the Achilles tendon and calf muscles can often help.
  • Strengthening Exercises: Specific exercises may be recommended to strengthen foot and leg muscles.
  • Physical Therapy: A structured program guided by a therapist.
  • Activity Modification: Temporarily reducing activities that cause pain.
  • Weight Management: Reducing excess weight decreases stress on the feet.
  • Medications: Pain relievers (NSAIDs) may provide temporary relief from inflammation.
Surgical Options

Surgery is generally reserved for cases where conservative treatments fail to relieve significant pain or when there is a specific structural issue (like a severe tendon tear or arthritic changes severe enough to affect quality of life). Surgical procedures vary depending on the cause and severity, potentially involving tendon repair, bone realignment, or joint fusion. This option would be discussed in detail by our podiatrists if deemed necessary.

Constraint Check: Treatment options are outlined without excessive detail, encouraging professional consultation.

Prevention & Self-Care Tips

While genetic flat feet cannot be prevented, you can manage symptoms and potentially slow the progression of acquired flat foot:

  • Wear Supportive Shoes: Avoid flimsy footwear; choose shoes appropriate for your activities.
  • Use Orthotics if Recommended: Provide consistent support during weight-bearing activities.
  • Maintain a Healthy Weight: Reduces stress on arches and tendons.
  • Address Pain Promptly: Don’t ignore foot or ankle pain; seek assessment early.

Stretch Regularly: Keep calf muscles and Achilles tendons flexible.

Frequently Asked Questions (FAQs)

A: In children, flexible flat feet often resolve naturally. In adults, non-surgical treatments manage symptoms and improve function but don't permanently change the arch structure. Surgery can alter structure but is reserved for specific cases.

A: Orthotics do not "cure" flat feet, but they provide support, improve alignment, redistribute pressure, and can significantly reduce or eliminate pain and discomfort.

A: In flexible flat foot (common in children), the arch appears when sitting or on tiptoes but flattens when standing. In rigid flat foot, the arch is flat in all positions, which may indicate a more significant underlying issue.

How We Can Help You

Taking the First Step Toward Healthier Feet

Flat Foot (Fallen Arches) can be a frustrating condition, but effective management is possible and early treatment leads to faster results. Book a consultation now to get a proper diagnosis and personalised treatment plan tailored to your needs.