Molluscum contagiosum is associated with atopic dermatitis and sexually transmitted infections in a matched case-control study using a national database

Molluscum contagiosum (MC) is a poxvirus that manifests as firm, smooth, dome-shaped, umbilicated, flesh-colored papules. In adults, MC is commonly spread by sexual contact, and is self-limited in patients with intact immune systems but more widely distributed and difficult to treat in immunocompromised persons. We analyzed cases of adult MC for associations with immunosuppression, lifestyle risk factors, and sexually transmitted infections (STIs).