前列腺癌是世界上第5位最常见的男性恶性肿瘤,其发病率在世界范围内有上升趋势。其中欧美人群发病率最高,在美国仅次于肺癌,占男性癌症死因的第2位。我国是前列腺癌低发病区,人群发病率和死亡率比欧美国家低20~30倍。但随着人群寿命的延长,饮食结构的改变和诊断技术的提高,其发 Prostate cancer is the fifth most common malignancy in the world and its incidence is on a worldwide upward trend. Including the highest incidence of European and American populations, second only to lung cancer in the United States, the second leading cause of cancer in men. China is a low incidence of prostate cancer, population morbidity and mortality 20 to 30 times lower than in Europe and the United States. However, with the extension of the population life expectancy, changes in diet and the improvement of diagnostic techniques, its development