NIC Cosmetology Written (Theory) ExamScientific ConceptsMedium

A client complains of brittle nails that split easily. Upon inspection, the cosmetologist notices several lengthwise ridges and a general lack of flexibility. This condition is known as:

  1. AOnychorrhexis
  2. BOnychophagy
  3. CPterygium
  4. DOnychocryptosis
Show answer & explanation

Correct answer: A. Onychorrhexis

Onychorrhexis is a nail disorder characterized by brittle nails with a series of lengthwise ridges, often splitting at the free edge. This condition is usually due to injury to the matrix, excessive use of harsh chemicals, or systemic diseases. It is not contagious and can be improved with proper care.

Why the other options are wrong

  • B. Onychophagy refers to bitten nails, which presents differently than brittle nails with ridges.
  • C. Pterygium is the forward growth of the eponychium (cuticle) over the nail plate or the hyponychium over the nail plate, not brittle nails.
  • D. Onychocryptosis is an ingrown nail, where the nail grows into the skin, which is distinct from brittle nails.

Onychorrhexis

A nail disorder characterized by brittle nails with lengthwise ridges, often splitting at the free edge.

  • Causes include injury to the matrix, excessive chemical use, or systemic issues.
  • Not contagious.
  • Can be improved with moisturizing and gentle care.

Memory trick: Nail 'Woes' have 'Distinct' 'Shows'!

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