Chronic obstructive pulmonary disease (COPD) is a common disease among elderly people, which is closely related with smoking.In recent years, COPD ranked the forth major cause of death in the world.Its morbidity is still increasing.According to the latest prediction from WHO, COPD will be the third cause of death in 2030.Lung cancer is one of common malignant tumors with high mortality.The morbidity and mortality of lung cancer are rising year by year, which accounts for more than 12% of all cancers in the world.For many years, these two diseases have been studied seperately.Recent studies have showed the morbidity of lung cancer in COPD patients was 2.76 times higher than that in general population.COPD is an independent risk factor for the etiology of lung cancer besides smoking.The aim of this review is to give a brief introduction of recent progress in the pathogenesis and treatment on COPD combined with lung cancer.

Chronic obstructive pulmonary disease; Lung cancer; Pathogenesis; Treatment progress