鼻咽癌是我国南方常见癌瘤之一。目前国内外对其流行病学和有关发病因素等方面都进行着广泛的调查研究。为了进一步明确鼻咽癌在中国南方的发生情况,找出最高发的地区,掌握流行病学特点以进一步研究,我们在1970～1975年间,在广东、广西、湖南、福建、江西等省的453个县市,一亿七千余万人口的地区开展了三年癌症死亡回顾调查。发现鼻咽癌 Nasopharyngeal carcinoma is one of the common cancers in southern China. At present, both domestic and foreign epidemiology and related pathogenic factors are extensively investigated. In order to further clarify the occurrence of nasopharyngeal carcinoma in southern China, identify the areas with the highest incidence, and grasp the epidemiological characteristics for further study, we have 453 in Guangdong, Guangxi, Hunan, Fujian, Jiangxi and other provinces from 1970 to 1975. In counties and cities, 170 million people in the area conducted a three-year review of cancer deaths. Nasopharyngeal carcinoma found