Molluscum contagiosum is a viral skin infection that causes smooth, waxy bumps.
Molluscum contagiosum is caused by a poxvirus. It is characterized by a rash of small, flesh-colored bumps with a small depression in the center. A person with a immunodeficiency disorder will have a more severe form of molluscum contagiosum, with many skin lesions.
The poxvirus that causes molluscum contagiosum is spread through close physical contact, including sexual intercourse. In addition, a person can spread the rash over his or her own body by scratching.