As shown in Figure 1 and Table 1, the positive rate of ADAM9 in OC tumor tissue was markedly higher than that in the non‐tumorous adjacent tissue (61/90 vs 47/90, P < .05), and increased expression level of ADAM9 was positively associated with the histological grade (P < .05), Figo stage (P < .05), and metastasis (P < .01) of the patients (Table 2). This evidence concerns the gene ADAM9 and neoplasm.