Nail Melanoma

Melanoma of the nail affects either a thumb nail or great toenail, but may involve any finger or toenail. Trauma may be a factor, accounting for the greater incidence in trauma-prone areas. Early detection and treatment is important.

When should you be worried?

  • All non-pigmented lumps under the nailplate
  • A wide (> 3 mm) new or changing pigment band in a single nail [ABCDEF]
  • A – Age: Older than 50
  • B – Border: Blurred
  • C – Colour: different colours darker and lighter bands, varied width
  • D – Diameter wide >3mm; Digit - thumb or big toe
  • E – Extend onto proximal nail fold
  • F – Family history of melanoma