A large number of moles
The more moles you have on your skin, the higher the risk of the most dangerous type of skin cancer, melanoma.
Moles are overgrowths of melanocytes (a type of skin cell). We are not normally born with moles, but most of us will develop some on our skin by 15 years of age.
The number of moles we develop is determined by genetic (inherited) factors and exposure to ultraviolet (UV) radiation.
Australians tend to have more moles than people living in other countries, possibly because of childhood sun exposure.
What do moles look like?
Moles can range in colour. They are generally medium to dark brown but can also be skin-coloured or black.
The majority of moles are flat, relatively even in colour and regular in shape. Some moles are raised and these are usually soft to touch and lighter in colour.
Dysplastic moles
These moles look different to ordinary moles and may evolve to melanomas. If you have multiple dysplastic moles you are at greater risk of melanoma. Your doctor may recommend regular checks with a dermatologist (skin specialist).
See your doctor if you think you have moles with the following 'dysplastic' features:
- larger than most moles
- smudgy and irregular edges
- uneven in colour
- may have some pinkness.
Also refer to:
- Australasian College of Dermatologists, a great source of information about moles, melanoma and skin cancer including treatment and other skin disorders
