– Sara Hiom, director of information at Cancer Research UK
Melanoma is a largely preventable disease. People can reduce their chance of developing skin cancer in the first place if they protect their skin from sunburn. But it's also important that people are aware of the warning signs for malignant melanoma.
Look out for changes in size, shape or colour of a mole, freckle or normal patch of skin - these should be reported to a GP without delay. In particular look for moles or freckles that are asymmetrical, with uneven colours or borders, larger than a pencil top eraser, are itchy or bleed.
The number of men and women in their 50s suffering from the most dangerous type of skin cancer has quadrupled in the last three decades, figures suggest.