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Flat feet or fallen arches

Also called: Flat feet, pes planus

Flat feet or fallen arches are common and often cause no problems. Pain in the feet, ankles, or knees may improve with supportive shoes.

Common causesFlat feet
Usually serious?Usually not
Get checked ifPain
If you think it's an emergency, call 911.Thinking about suicide? Call or text 988.

Overview

Many people have flat feet without symptoms.

Adult-acquired flatfoot can come from tendon problems.

When to get medical care

Call 911Not an emergency.
Get care todayNot usually urgent.
See a doctor soonPain or one foot flattening.

Causes

Causes include genetics and tendon problems.

OwieClear has pages on 1 condition that can cause flat feet or fallen arches. Each shows how soon to get care.

Common causes

  • Flat feetOften treated at home

    Arches that sit low or flatten when standing.

What you can do at home

  • Wear supportive shoes.

Medicines

Orthotics or physical therapy.

At the doctor

Diagnosed by exam.

Questions you may be asked

  • Pain

The exam

A foot exam.

Tests

  • X-rays if needed

Prevention

Support your feet.

  • Wear proper shoes

Check your symptoms

Most symptoms have more than one possible cause. The symptom checker looks at all of your symptoms together, plus your age, and shows how soon to get care.

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Sources

Last updated 2026-11-13.