Fibromas are benign skin tumours. Flat, raised, small or large, they either sit on the skin’s surface or are found attached by a short thin neck or peduncle. Pedunculated fibromas (e.g. skin tag on neck) vary in size from pea-sized to larger ones and can be a normal to dark colour.
Fibromas of the skin are believed to be genetic, although the likelihood also increases with age or chronic trauma