一般认为饮食中含有的硒能预防前列腺癌的发生。流行病学研究提示血液中硒水平与前列腺癌发生率密切相关,但是迄今未见检测前列腺吸收硒情况的研究报道。本研究目的在于确定口服补充硒是否影响前列腺和(或)外周血硒水平。研究人员将因良性前列腺增生症(BPH)而需要行经尿道前列 It is generally believed that the diet contains selenium can prevent the occurrence of prostate cancer. Epidemiological studies suggest that selenium levels in blood are closely related to the incidence of prostate cancer, but so far no study has been reported on the detection of prostate selenium. The purpose of this study was to determine whether oral supplementation of selenium affects selenium levels in prostate and / or peripheral blood. Researchers will need to have a transurethral approach because of benign prostatic hyperplasia (BPH)