Warts and molluscum are very common viral infections of the skin. The human papilloma virus causes warts and molluscum is caused by a poxvirus — both are spread via skin-to-skin contact. The virus infects only skin cells and does not go into the blood or saliva. Most people will be exposed to both viruses by adulthood.
Typically warts occur on the hands and feet but they can occur anywhere on the body. Warts appear as thick, rough bumps. Molluscum can occur on any part of the skin and appear as pink, translucent or skin colored bumps with a white core.
Both warts and molluscum are contagious and can spread from person to person or to other areas of skin on the same person if there is prolonged skin to skin contact.