前列腺癌是老年男性常见的恶性肿瘤之一。美国前列腺癌的发病率占男性恶性肿瘤的第1位。近20年来随着我国人口老龄化及生活条件的改善,我国前列腺癌的发病率也呈现显著增加的趋势。尸检资料表明,前列腺癌的发病率在50岁以上的人群中为30%,而在60岁以上的人群中可达40%～80%,但 Prostate cancer is one of the common malignant tumors in elderly men. The incidence of prostate cancer in the United States accounted for the first of male malignancies. In the recent 20 years, with the aging of our population and the improvement of living conditions, the incidence of prostate cancer in our country has also shown a significant increase trend. Autopsy data show that the incidence of prostate cancer in people over the age of 50 30%, while in people over the age of 60 up to 40% to 80%, but