Idiopathic gingival fibromatosis (IGF) is a hereditary condition with esthetic, functional, and periodontal impairment in patients. It is slowly progressive in nature. The enlargement might be nodular or localized and symmetrical in nature all along the dentition in both the arches and similar gender prediction uniformly. The present case report of IGF in a 21‑year‑old female patient covering three‑fourths of crowns in posterior areas. The gingival enlargement was excised by external bevel gingivectomy along with the use of electrocautery. The gingival fibromatosis can be genetic, hereditary, or drug‑influenced covering marginal, papillary or in severe, long‑standing cases, it might cover crown of teeth, thus hampering mastication henceforth, functional impairment. The prognosis is uncertain, and the recurrence of risk is high.