Moles are generally a normal and common type of raised brown or dark skin growth that appears during childhood and adolescence. They can gradually change over time, often becoming less apparent or fading. With age, the number of skin moles can increase.
Although moles are generally harmless, they carry a very high risk of becoming cancerous with sun exposure and changes to their DNA. This is called malignant change, and some moles may become a cancerous malignant melanoma.
If you have new moles, changing moles, or a history of multiple moles, known as atypical mole syndrome, skin cancer screening is highly recommended.