NIC Nail Technician Written ExamScientific ConceptsHard

A client reports that her nails have a tendency to lift and peel at the free edge, especially after prolonged water exposure. Upon inspection, the technician observes that the nail plate appears to separate into layers. What is this condition commonly known as?

  1. AOnychophosis
  2. BOnychorrhexis
  3. COnychoschizia
  4. DOnychoptosis
Show answer & explanation

Correct answer: C. Onychoschizia

Onychoschizia is the splitting or layering of the nail plate, often at the free edge, commonly caused by excessive water exposure, harsh chemicals, or trauma. The description perfectly matches this condition.

Why the other options are wrong

  • A. Onychophosis refers to a growth of horny tissue under the nail plate.
  • B. Onychorrhexis refers to brittle nails with lengthwise ridges, not horizontal splitting or peeling.
  • D. Onychoptosis is the periodic shedding of one or more nails.

Onychoschizia (Splitting/Peeling Nails)

Onychoschizia is a common nail condition characterized by the splitting or layering of the nail plate, typically at the free edge, often due to dehydration, trauma, or chemical exposure.

  • Nail plate splits or peels into layers.
  • Often starts at the free edge.
  • Caused by dehydration, trauma, chemicals, or excessive water exposure.

Memory trick: OnychoSCHIZIA: The nail 'splits' like a schizophrenic personality.

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