Oral fibroma is the most common benign soft tissue tumor caused due to continuous trauma from sharp cusp of teeth or faulty dental restoration. It presents as sessile or occasionally pedunculated painless swelling which can be soft to firm in consistency. Its incidence occurs mostly during third to fifth decade and shows preference for female. Its occurrence corresponds with intraoral areas that are prone to trauma such as the tongue, buccal mucosa and labial mucosa, lip, gingiva. Even with conservative surgical excision, the lesion may recur until the source of continuous irritation persists. This article presents a case of large size oral fibroma on left alveolar region associated with ulceration along with literature review.