Most harmless moles are either round or oval shaped, with smooth margins. They could be flat or raised and the surface may feel smooth or rough. Sometimes they have hair growing from them.
A skin tag is a tiny, benign, out-pouching of skin that is typically connected to the underlying skin by a thin stalk. Skin tags look like tiny bits of "hanging" skin and typically occur in sites where clothing rubs against the skin or where there is skin-to-skin friction, such as the underarms, neck, upper chest, and groin.
Warts are elevated skin lesions over the face or body, commonly over the hands and feet. Warts are commonly due to certain viruses. Most of the warts are not symptomatic but may pose aesthetic concerns to many.