肺癌是本世纪各国发病频数增长最快的恶性肿瘤之一,在许多国家的死因构成中居恶性肿瘤的首位,因此为医学界所重视。几十年来流行病学、临床和实验室研究的结果表明吸烟是肺癌的主要危险因素,工业污染暴露也起着重要作用。本文着重介绍随着医学研究方法的进步,近年肺癌病因研究的几点新进展。 Lung cancer is one of the fastest growing malignant tumors in various countries in this century. In many countries, the cause of death constitutes the first place among malignant tumors. Therefore, it is highly valued by the medical community. The results of epidemiological, clinical and laboratory studies over the past decades have shown that smoking is a major risk factor for lung cancer, and industrial pollution exposure also plays an important role. This article focuses on the advances in medical research methods and recent advances in the etiology of lung cancer in recent years.