Molluscum contagiosum is a skin condition caused by a virus. It causes small pink or skin-colored bumps on the skin. They may spread or form lines when scratched. Almost any area of skin can be affected. Common sites include the face, neck, armpit, arms, hands, and genitals. The rash spreads easily from one part of the body to another. It spreads through scratching or other contact. It can also spread from person to person. This often happens through shared clothing, towels, or objects such as shared sports gear. It can spread during contact sports or sexual contact. The bumps often go away in about 2 to 12 months. In rare cases, they last 3 to 5 years.