Warts are a very common skin condition. They frequently appear as single lesions or in small groups. This is a photograph of an unusually severe and extensive case of warts. (Image courtesy of the Centers for Disease Control and Prevention.)

A lipoma is a noncancerous growth of fatty tissue cells. A lipoma can develop in almost any organ of the body although they are most commonly found in the subcutaneous layer just below the skin.  A lipoma usually grows slowly and is a nonpainful mass that is soft and moveable under the skin. Lipomas can also be associated with other syndromes where they are not so harmless.  In the rare disease adiposis dolorosa there is swelling of the body and fatty deposits (lipomas) which apply pressure to the nerves, resulting in weakness and sometimes extreme pain. The amount of discomfort, irritation, or pain from the growth of a lipoma depends upon where in the body and what surrounding tissue or organ the lipoma has affected.

Warts may occur on any area of the body. These are typical looking warts on the face.

This person has a wart (verruca) that has built up a cutaneous horn which is made up of hard keratin. This does not slough-off like normal skin cells.

A lipoma is a benign fatty tumor found in the subcutaneous layer just below the skin. These lumps can be multiple and present for many years.