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Corn

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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A corn is a form of callosity sited on the foot. It is a discrete area of hyperkeratosis that has formed as a reaction to concentrated external pressure. It usually develops on the bony prominences of the toes in response to ill-fitting shoes. Within the corn, there is a core of hard keratin surrounded by an opalescent margin.

Clinically, they are painful and usually require treatment with:

  • mechanical, abrasive removal of the keratin
  • correctly-fitted shoes
  • metatarsal sponge support for corns in this area
  • rarely, orthopaedic operation to modify deranged weight-bearing

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The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

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