每年约28000人死于前列腺癌,占癌症死亡率的11%.在男性癌症死亡中仅次于肺癌、结砀癌居第三位.前列腺癌与饮食、性病、吸烟、性习惯及职业方面的接触等不相关.当前认为前列腺癌的危险因素主要取决于血清睾丸素水平的高低.前列腺癌有明显地区性和种族差异,上海每十万人口中仅发现0.8例,而美国加州旧金山湾东岸Alameda的十万黑人中前列腺癌为100.2人,死亡率也高,亚洲人比白种人发病低.前列隙癌生长缓慢,临床上很不容易发现,一旦临床出现症状,肛诊可触及前列腺 Approximately 28,000 people die of prostate cancer each year, accounting for 11% of cancer deaths, ranking the third only to cancer of the lung in men and third place in cancer, prostate cancer and diet, STDs, smoking, sexual habits and occupational Exposure, etc. Currently, the risk factors for prostate cancer are mainly determined by the serum testosterone levels.The regional and ethnic differences in prostate cancer are obvious. Only 0.8 cases are found in Shanghai per 100,000 population, while the east coast of San Francisco Bay Prostate cancer in 100 000 black people in Alameda is 100.2 with high mortality rate and Asian incidence is lower than that in Caucasian people. Prostate cancer grows slowly and is not easily found clinically. Once the clinical symptoms appear, the anus can reach the prostate