NIC Nail Technician Written ExamScientific ConceptsMedium

A technician is performing a pedicure and notices a distinct separation of the nail plate from the nail bed, starting at the free edge and progressing inward. The nail itself appears healthy otherwise. Which nail condition does this describe?

  1. AOnycholysis
  2. BOnychocryptosis
  3. COnychomadesis
  4. DOnychorrhexis
Show answer & explanation

Correct answer: A. Onycholysis

Onycholysis is the detachment of the nail plate from the nail bed, typically starting at the free edge. It can be caused by trauma, allergic reactions, or systemic conditions, but the nail plate itself often remains intact.

Why the other options are wrong

  • B. Onychocryptosis is an ingrown nail, where the nail grows into the flesh of the nail fold.
  • C. Onychomadesis is the shedding or complete separation of the entire nail plate from the matrix.
  • D. Onychorrhexis refers to brittle nails with lengthwise ridges and cracks.

Onycholysis

The painless separation of the nail plate from the nail bed, usually starting at the free edge.

  • Nail plate detaches from its underlying bed.
  • Can be caused by trauma, chemicals, or systemic issues.
  • The separated area may appear white or opaque.

Memory trick: Onycho-LYSIS, the nail goes bye-bye from its bed.

More Scientific Concepts questions