An ingrown toenail happens when a portion of the toenail curves into the flesh of the toe. It imbeds itself in the soft tissue. It can occur on any of the toes. However, it usually occurs on one of the big toes.

Ingrown Toenail
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The most common causes of an ingrown toenail are:

  • Improper cutting or trimming of the toenail
  • Wearing footwear that is too tight
  • Repeated trauma to the toes, often due to sports activities