I noticed just recently that a mole I have has changed colour. It used to be a solid orange-y colour but has adopted a darker ring around the outside. Why is this?

Please, show it to a dermatologist as soon as possible!

Malignant Melanoma could arise from moles. Malignant Melanoma is a type of skin cancer, which does not stay just in the skin, but could spread to other parts/organs of the body.

When a mole changes in size, colour, surface, ulcerate, or bleed, it is a wise move to show it to a doctor (preferable a dermatologist), just to be sure.