前列腺癌是欧美国家最常见的上皮性恶性肿瘤,占所有恶性肿瘤的29%,致死率在美国仅次于肺癌。中国前列腺癌的发病率远低于欧美国家,但研究表明,近年来,我国尤其是上海等经济发达区域前列腺癌的发病率有逐年升高的趋势[1]。目前,前列腺癌的发病原因及发病机制尚不清楚,但前列腺癌的高发人群集中于老年人,年龄越大发病率越高。有研究发现,睾 Prostate cancer is the most common epithelial malignancy in Europe and the United States, accounting for 29% of all malignancies, the second leading cause of death in lung cancer in the United States. The incidence of prostate cancer in China is much lower than in Europe and the United States, but studies show that in recent years, the incidence of prostate cancer in economically developed regions in China, especially in Shanghai, has been increasing year by year. At present, the etiology and pathogenesis of prostate cancer is not clear, but the high incidence of prostate cancer concentrated in the elderly, the older the higher the incidence. Some studies have found that testis