20 cases of high risk BPH patients were treated with tunnel method of innes tissueof the prostate gland and creating a smoothe tunnel through the obstruction. In case wides resectionof the prostatic tissue was needed to relieve the obstructin coagulant agent was injected befarehandin the sites where excessive bledding was likely to occur. This procedure could reduce hemarrhageand shorten the time of operation. Our experience indicated that during surgical interuention in highrisk BPH patients suitable method and procedure could help the patients safely t...