Fibroma are soft tissue lesions that are believed to be caused by acute and / or chronic trauma.

They typically present as a smooth surfaced, well-defined solitary mass that are commonly found in areas accessible to trauma. Fibromas are frequently seen on the buccal mucosa, the tongue and lower lip, but can be found elsewhere as well.

Fibromas are asymptomatic and firm to rubbery when palpated. They grow slowly and have a limited size of 1 – 2 cm. Being pale in color, they represent tissue that lacks vascularity. Fibroma can be easily traumatized, so the lesion may exhibit an ulceration on the surface.