What are the types of ingrown nails?

Updated: Nov 06, 2020
  • Author: Amira M Elbendary, MBBCh, MSc; Chief Editor: William D James, MD  more...
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Answer

Types of ingrown nail include the following [4] :

  • Neonatal: Occurs as a result of delayed overgrowth of the free nail margin on the tip of the toe and can be managed conservatively (see the first image below)

  • Infantile: Congenital form results from malalignment of the big toenail or as a result of hypertrophy of lateral nail fold

  • Adolescent : Most common cause is a narrow nail bed, resulting in ingrowing distal lateral nail

  • Adult: Most common cause is pressure that causes sharply bent lateral margin of the nail plate

  • Distal embedding from a big toe nail that is too short

  • Retronychia

  • Pincer nail (see second image below)

    Neonatal ingrown nail. Courtesy of Dermatology Res Neonatal ingrown nail. Courtesy of Dermatology Research and Practice (Haneke, E. "Controversies in the Treatment of Ingrown Nails." Dermatology Research and Practice. 2012; 2012:783924).
    Pincer nail. Courtesy of Dermatology Research and Pincer nail. Courtesy of Dermatology Research and Practice (Haneke, E. "Controversies in the Treatment of Ingrown Nails." Dermatology Research and Practice. 2012; 2012:783924).

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