Moles:
In dermatology, a pigmented spot on the skin, Also called a nevus.
Warts:
A local growth of the outer layer of the skin (the epidermis) caused by a virus. The virus of warts (a papilloma virus) is transmitted by contact. The contact can be with a wart on someone else or one on oneself (autoinoculation).
Skin tags:
A skin tag is a common, benign condition which consists of a bit of skin that projects from the surrounding skin and may appear attached to the skin. Skin tags can vary quite a bit in appearance. They may be smooth or irregular, flesh colored or more deeply pigmented, and either simply be raised above the surrounding skin or have a stalk (a peduncle) so that the skin tag hangs from the skin.
