Skin Tag Or Pimple. Warts are caused by a virus. It most commonly occurs on the chest back arms and legs.

Genital warts are flat or slightly raised bumps on the surface of the skin. It most commonly occurs on the chest back arms and legs. This is a condition in which normal hair follicles become inflamed or infected resulting in small red bumps.
Its possible for a cancerous growth.
They can vary in colour and size from a few millimetres up to 5cm wide. Are you a Doctor. Its possible for a cancerous growth. That is what they are trained for.