A mole is a grouping of pigmented skin cells that grow in a cluster, instead of spreading out. They are usually brown or black in color and can appear anywhere on the body.
Moles may appear at birth, but can sometimes develop shortly afterwards (which are referred to as congenital nevi). Most develop in childhood and early adult life and become more prominent with age. Moles may also darken with repeated sun exposure or as a result of hormonal changes during pregnancy. Most people have moles, but any irregularities or changes in the shape, edge, color or size can be warning signs of skin cancer. Although they rarely become cancerous, you should consult with a doctor if you spot any changes in its appearance (size, shape, color, sensation). Skin cancer may take years to develop. Many forms grow slowly, but some melanomas may grow quickly. If found in the early stages, it’s very treatable.