前列腺增生症是常见老年病。前列腺癌在欧美国家发病率较高,但近年来随着人口平均寿命的延长及诊断水平的不断提高,我国前列腺癌的发病率已有上升趋势。超声检查,尤其是经直肠超声在诊断前列腺增生、前列腺癌中所发挥的重要作用已越来越被临床认可[1]。笔者就前列腺增生、前列 Prostatic hyperplasia is a common disease of the elderly. Prostate cancer in Europe and the United States higher incidence, but in recent years with the extension of the average life expectancy and the diagnosis of continuous improvement, the incidence of prostate cancer in China has been on the rise. Ultrasonography, especially transrectal ultrasound in the diagnosis of benign prostatic hyperplasia, has played an important role in prostate cancer has been more and more clinically recognized [1]. The author of benign prostatic hyperplasia, the forefront