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.
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Henri van Breda also attempted to kill his sister, who was left fighting for life after the savage attack at the family home.
Butterflies and nerves of steel were behind the images shared and seen by millions across the globe.
The Duke and Duchess of Sussex thanked everyone who took part in the celebrations on Saturday, Kensington Palace said.