胃癌是常见恶性肿瘤之一,尽管对胃癌病因学做过大量工作,但与其他某些常见肿瘤(如肺癌、宫颈癌、肝癌等)相比较,可以说了解得更不够,尚未能揭示出它的主要病因来,因此也要求针对胃癌的病因学问题,发动群众,组织力量做出更多的工作。现将国内外关于胃癌病因学的研究现况,分两方面综述如下: 胃癌的流行病学及病因调查研究 Gastric cancer is one of the most common malignancies. Although it has done a lot of work on the etiology of gastric cancer, compared with other common tumors (such as lung cancer, cervical cancer, liver cancer, etc.), it can be said that it is not enough to understand it yet. It is the main cause of the disease, and therefore it also requires the etiology of gastric cancer to mobilize the masses and organize forces to do more work. The current status of research on the etiology of gastric cancer at home and abroad is summarized in two aspects as follows: Epidemiology and etiological investigation of gastric cancer