Moles occur when melanocyte cells in the skin grow in a cluster instead of being spread throughout the skin and are usually brown or black. Moles can appear anywhere on the skin, alone or in groups.As the years pass, moles usually change slowly, becoming raised and/or changing color. Often, hairs develop on the mole. Some moles may not change at all, while others may slowly disappear over time.Moles may darken after exposure to the sun, during the teen years, and during pregnancy.
Types of Moles:
Warts are raised growths on the skin caused by an infection with human papilloma virus (HPV). Warts are often skin-colored and feel rough distinguishing them from moles. But they can be dark (brown or grey-black), flat, and smooth.
A skin tag is a small flap of tissue that hangs off the skin by a connecting stalk. Skin tags are not dangerous. They are usually found on the neck, chest, back, armpits, under the breasts, or in the groin area. They are not painful but can be irritating when jewelry etc. causes friction with the skin.