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Causes and risk factors

Reading time: 1 min

Onychocryptosis usually occurs on the big toe and can be caused by several factors:

  • Improper nail cutting. They must be cut straight.  
  • Family predisposition or hereditary factors. The shape of the finger and nail plate are inherited, just as hair or eye colour are inherited.  
  • Biomechanical or structural alterations of the foot, such as flat feet or bunions.  
  • Hyperhidrosis or excessive sweating of feet.
  • Footwear with a narrow toe and/or excessive heel height.  
  • Male sex
  • Certain trauma, such as trampling injury.
Read more Signs and symptoms
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Substantiated information by:

Sergi Sánchez

Published: 1 June 2022
Updated: 1 June 2022

The donations that can be done through this webpage are exclusively for the benefit of Hospital Clínic of Barcelona through Fundació Clínic per a la Recerca Biomèdica and not for BBVA Foundation, entity that collaborates with the project of PortalClínic.

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