Warts and molluscum are both caused by viruses, that lead to skin colored bumps. While both conditions are relatively harmless, they are both contagious and can spread on someone or person to person. They can be spread by
Having skin-to-skin contact with someone who has these bumps on their skin.
Touching something that someone who has these bumps used, such as an unwashed towel, toy, or wrestling mat.
Sharing unwashed clothes or sports equipment with someone who has them.
Treatment varies slightly between warts and molluscum, but include topical medications (salicylic acid, imiquimod) and in-office procedures (cryotherapy (freezing), electrodissecation (burning), and cantharidin).