What are moles? Moles are growths on the skin that are typically brown or black. They can be located anywhere on the body, alone or in clusters or groups. Typically, most moles will appear in early childhood or during the first twenty years of life although some moles may not appear until later in life.

As we age, moles may change slowly in size, or shape, becoming raised or changing color. Sometimes,  hair develops on the mole.  Some moles don’t change at all and others may even disappear over time.

Moles occur when cells in the skin grow in a cluster instead of being spread throughout the skin. These cells are called melanocytes, and they make the pigment that gives skin its natural color. Moles may darken after exposure to the sun, during teenage years or during pregnancy.

Most moles are not dangerous. The ones of medical concern are those that look different than other existing moles, moles that have changed in appearance (particularly if the change was not a gradual one) or those that first appear after the age of 20.

You should examine your skin regularly by using a mirror. Pay special attention to areas that are most often exposed to the sun such as hands, arms chest, neck and face. If you see any change or have concerns, or even if you would like an unsightly mole removed for cosmetic reasons, you should talk to your dermatologist.