My grandmother has a lump on her chin that sprouts hair. What is this?

Chances are that your grandmother has a mole, a spot on the skin that is usually round or oval in shape. Moles can be small or large, smooth or lumpy, and range in color from pink, brown, red, or black. Skin moles can occur on any area of the body and even sprout hair. Moles are melanocytes—or cell factories that make pigments to give skin its color—that have grown in clusters rather than spreading throughout the skin. Moles can appear at any time or at any age; even babies are born with them occasionally. In fact, if you look carefully enough, you may find between 10 and 50 moles on your own body!