前列腺癌的发病率近 10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 ,在欧美是男性仅次于肺癌的第二位恶性肿瘤。在我国 ,前列腺癌 1993年统计的发病率和死亡率虽低于欧美 2 0～ 30倍 ,但由于前列腺癌是一个与年龄相关的疾病 ,饮食特别是动物性脂肪 The incidence of prostate cancer has increased considerably in recent 10 years. Especially in the United States, it surpassed breast cancer for the first time in 1994 and became one of the major tumors in the United States. It is the second malignant tumor in men and women in South America after lung cancer. In our country, although the incidence and mortality of prostate cancer in 1993 are lower than those in Europe and the United States by 20-30 times, since prostate cancer is an age-related disease, the diet, especially animal fat