Munson Health
Flat Foot

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by Polsdorfer R

(Pes Planus; Pes Planovalgus; Fallen Arches)


Risk Factors

Factors that increase your chance of flat feet include:


Flat feet may not cause any symptoms at all. Rigid flat feet may cause:
  • Pain
  • Calluses, blisters, or skin redness on the inner side of the foot
  • A stiff foot
  • Weakness or numbness of the foot
  • Rapid wearing out of shoes—worn shoes lean in toward each other
  • Difficulty or pain with activities like running—in the foot, knee or hip


American Academy of Orthopaedic Surgeons

American College of Foot and Ankle Surgeons



Canadian Podiatric Medical Association

Nurses Entrepreneurial Foot Care Association of Canada



Adult acquired flatfoot. American Academy of Orthopedic Surgeons website. Available at: Updated December 2011. Accessed May 2, 2013.

Flat foot. UCSF Children’s Hospital website. Available at: Accessed May 2, 2013.

Pes planus. EBSCO DynaMed website. Available at: Updated November 12, 2010. Accessed February 20, 2014.

11/19/2010 DynaMed's Systematic Literature Surveillance Rome K, Ashford R, Evans A. Non-surgical interventions for paediatric pes planus. Cochrane Database Syst Rev. 2010;(7):CD006311.


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