ABCD-Easy guide to checking your moles
Asymmetry - the two halves of the area may differ in shape
Border - the edges of the area may be irregular or blurred, and sometimes show notches
Colour - this may be uneven. Different shades of black, brown and pink may be seen
Diameter - most melanomas are at least 6mm in diameter.
BAD suggests that patients should report any change in size, shape or diameter to their doctor
Reference:
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