前列腺癌的发病率近十几年来增加了许多，特别是在美国．１９９４年首次超过乳腺癌，成为主要肿瘤之一［１］。在欧美是男性仅次于肺癌的第二位恶性肿瘤［２］。在我国前列癌１９９３年统计的发病率和死亡率虽低于欧美２０－３０倍，但由于前列腺癌是一个与年龄相关的疾病，饮 The incidence of prostate cancer has increased a lot in the past decade, especially in the United States. It surpassed breast cancer for the first time in 1994 and became one of the major tumors [1]. In Europe and the United States is second only to men after lung cancer [2]. In our country, the incidence of prostate cancer in 1993 and the mortality rate were 20-30 times lower than those in Europe and the United States, but because prostate cancer is an age-related disease, drinking