Quick answer
Lots of moles or freckles is a sign your skin is more at risk from UV. The NHS lists a large number of moles or freckles as a risk factor for melanoma, and frequent sunbed use as another. If you have many moles, get advice before using a sunbed, check your skin regularly, and see your GP about any mole that changes size, shape or colour.
Why moles and freckles matter
The NHS lists these as risk factors for melanoma, the most serious type of skin cancer:
- a large number of freckles or moles
- pale skin that burns easily
- red or blonde hair, and blue or green eyes
- a family history of skin cancer, or having had it before
- frequent sunbed use
It also says UV light, from the sun and from sunbeds, is the most common cause of melanoma.
Freckles are a clue to your skin type
Freckles usually mean fair, UV-sensitive skin, often type 1 or 2 on the Fitzpatrick scale. If you freckle and burn easily, UK guidance says not to use a sunbed. See who shouldn't use a sunbed.
How to check your moles
The NHS says to look out for moles that:
- Are an uneven shape, with two halves that don't match or ragged edges
- Are a mix of two or more colours
- Are larger than about 6mm across
- Change in size, shape or colour
- Are swollen, sore, bleeding, itchy or crusty
Check your skin every month or so, including your back (use a mirror or ask someone), scalp, palms, soles and under your nails.
When to see your GP
See a GP if a mole changes size, shape or colour, becomes painful, itchy, inflamed, bleeding or crusty, or if you have a new or unusual mark that hasn't gone away after a few weeks. Don't use a sunbed until it's been checked. Finding melanoma early makes it easier to treat.
