Nails

Koilonychia

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Koilonychia, Spoon Nails

  • See Also
  1. Fingernail
  2. Nail Abnormality
  • Signs
  1. Concave or Spoon shaped nails
  • Causes
  1. Normal finding in infants
    1. Resolves within first 1-2 years of life
  2. Iron Deficiency Anemia
  3. Hypothyroidism
  4. Trauma
  5. Impaired peripheral circulation
  6. Systemic Lupus Erythematosus
  7. Hemochromatosis
  8. Raynaud's Disease
  9. Contact Dermatitis to petroleum-based solvent
  10. Nail-Patella Syndrome (Autosomal Dominant)
    1. Hypoplastic Patella - commonly dislocated
    2. Glaucoma
    3. Renal disease
    4. Musculoskeletal conditions
  • References
  1. Tully (2012) Am Fam Physician 85(8): 779-87 [PubMed]