目前恶性肿瘤是严重威胁人类生命和健康的主要疾病之一,已成为突出的卫生保健问题,加之人口老龄化以及环境污染等问题的存在,恶性肿瘤预防工作面临的形势更为严峻。为了更全面地了解当前恶性肿瘤的形势,达到更好地预防癌症的目的,现对恶性肿瘤分布和预防的国内外现状作如下综述。1全球癌症分布特征 At present, malignant tumors are one of the major diseases that seriously threaten human life and health. It has become a prominent health care issue. Coupled with the problems of population aging and environmental pollution, malignant tumor prevention is facing even more serious problems. In order to better understand the current situation of malignant tumors and to achieve better prevention of cancer, the current status both at home and abroad on the distribution and prevention of malignant tumors is summarized as follows. 1 global cancer distribution characteristics