1资料与方法1.1资料(1)正常对照组:选择正常体检的男性干部,除外前列腺疾病及其它疾病的健康者163例,年龄在45～67岁间。(2)前列腺增生组:选择175例男性均为我科门诊及住院确诊的患者,年龄58～88岁间。(3)前列腺癌组:46例前列腺癌患者均为我院住院病人及外院确诊的患者,年龄51～79岁间,结合肛门指诊、直肠B超、CT及MR。最终病理检查为阳性者。 1 Materials and Methods 1.1 Materials (1) normal control group: male cadres choose normal physical examination, except for prostate disease and other diseases, 163 cases of healthy, aged 45 to 67 years old. (2) Prostate hyperplasia group: Select 175 cases of male patients were diagnosed in our department and hospitalized, aged 58 to 88 years. (3) Prostate cancer group: 46 cases of prostate cancer patients were diagnosed as inpatients and outpatients in our hospital, aged from 51 to 79 years, combined with anus, B ultrasound, CT and MR. The final pathological examination was positive.