关键词: 肺肿瘤, 糖尿病, 预后, 降糖药物

Abstract:  Lung cancer is the most common cancer and the leading cause of cancer-related deaths worldwide.With the aging of population and changes in eating habits，the incidence of diabetes mellitus in recent years increased year by year.The phenomenon of coexistence of lung cancer and diabetes mellitus in the same individual is not infrequent.Studies have shown that diabetes and glucose-lowering therapies can influence the risk and prognosis of lung cancer，but its specific impact and mechanism are not yet fully clear.Based on the review of the relevant literature，we summarized the epidemiological characteristics and common risk factors of both lung cancer and diabetes mellitus，impact of diabetes and glucose-lowering drugs on lung cancer and the relative mechanism.

Key words: Lung neoplasms, Diabetes mellitus, Prognosis, Glucose-lowering drugs