Moles are small patches usually brown or black in colour that form on the skin. They are caused by skin cells that form in clusters, called, 'melanocytes', which produce the colour or pigment in your skin. They can be flat or raised and some even have hair growing from them. They are usually a circular or oval shape.
It's important to remember that most moles are harmless. However, sometimes they can develop into a form of skin cancer called, 'malignant melanoma'. If you notice new moles or existing moles that have changed shape, colour, size, height, or if they become irritated or start bleeding, then it's important you go to your GP immediately to get them checked.
If you have lots of moles you can prevent them from becoming cancerous by protecting yourself in the sun. Avoiding overexposure to UV rays can reduce your chances of developing melanoma. Use a moisturiser containing a high SPF, such as Sinlen SPF 80