What causes Moles?
They are caused by clusters of melanocytes (the cells in the body in charge of normal skin colour). Most moles are harmless. Rarely, they become cancerous. Being aware of changes in your moles is important to detecting skin cancer, especially malignant melanoma.
As we age, moles may appear gradually on our bodies. This happens when cells in the skin grow in a concentrated area rather than being evenly spread through the skin.
Moles can turn darker following sun exposure, pregnancy and adolescent to teenage years.