Localized juvenile spongiotic gingival hyperplasia (LJSGH) is a kind of gingival hyperplasia with unique pathological manifestations. Its clinical manifestations are atypical, and the etiology and pathogenesis are unclear. No case report was reported in China. The diagnosis of this disease mainly relies on pathological testing, and recurrence may occur after treatment. The best treatment method still lacks medical evidence. This paper reports a case of LJSGH in a teenager and summarizes its clinical, pathological, and treatment through literature review. This work provides a reference for the diagnosis and treatment of this disease.
