Corns and calluses


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Risk factors

By Mayo Clinic staff

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Illustration of bunion Bunion
Illustration showing hammertoe Hammertoe

These factors may increase your risk of corns and calluses:

  • Bunions, hammertoe or other foot deformities. A bunion is an abnormal, bony bump that forms on the joint at the base of your big toe. A hammertoe is a toe deformity in which your toe becomes curled up like a claw. These conditions and other foot deformities, such as a bone spur, can cause constant rubbing inside your shoe.
  • Not protecting your hands. Using hand tools without wearing gloves exposes your skin to excessive friction.
Tests and diagnosis Causes
References
  1. Goldstein BG, et al. Overview of benign lesions of the skin. http://www.uptodate.com/home/index.html. Accessed Dec. 13, 2010.
  2. Smith BW, et al. Disorders of the lesser toes. Sports Medicine and Arthroscopy Review. 2009;17:167.
  3. Calluses and corns. The Merck Manuals: The Merck Manual for Healthcare Professionals. http://www.merck.com/mmpe/print/sec10/ch113/ch113b.html. Accessed Dec. 19, 2010.
  4. Corns & calluses. American Orthopaedic Foot & Ankle Society. http://www.aofas.org/Scripts/4Disapi.dll/4DCGI/cms/review.html?Action=CMS_Document&DocID=34&Time=1594904778&SessionID=7971732q9hp5yh5dy37bavztg8mbo8b8n5pm0obw17xtxh089e25es8586jcdqv3&MenuKey=123. Accessed Dec. 19, 2010.
DS00033 April 5, 2011

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