Mollusca are usually small flesh-colored or pink dome-shaped growths that often become red or inflamed. They may appear shiny and have a small central indentation or white core. Because they can spread by skin-to-skin contact, mollusca are usually found in areas of skin that touch each other such as the folds in the arm or groin. They also are found in clusters on the chest, abdomen, and buttocks and can appear on the face and eyelids. Sometimes, the growths appear in a row. While molluscum contagiosum will eventually go away on its own without leaving a scar, many dermatologists advise treating. Treatment can prevent the growths from spreading to other areas of a patient's body and to other people.