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What is a mole?

A mole or nevus is a dark spot on our skin comprised of skin cells that have grown in a group rather than individually. These cells are called melanocytes and are responsible for producing melanin, the pigment (colour) in our skin. Moles appear on our skin from sun exposure (ultraviolet radiation), or we are born with them. Although the number of moles varies from person to person, fair-skinned people generally have more moles due to lower amounts of melanin in their skin. The average number of moles for adults is between 10 and 40. Moles can even come and go with hormonal changes such as pregnancy or puberty. Most people develop more moles on their skin naturally with age and sun exposure, and most of the time, these are harmless. However, we need to conduct skin checks regularly (recommended monthly, especially if there is a family history of skin cancer, or at least every three months) to check whether they have changed.

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