Macroscopic per and post-operative hematuria contributes significantly to hospitalisation time and to the morbidity of conventional surgery of symptomatic prostatic hypertrophy. It requires in fact transient anti-coagulation interruption, so as eventually a window with platelet anti-agregants. The newly available 80-Watts Potassium-Titanyl-Phosphate laser markedly reduces post-operative hematuria, and allows operating the increasing population of patients under platelet anti-agregants, or event those who need therapeutic anticoagulation. This series reports on our initial experience with a technique which decreases remarkably post-operative catheterization and hospitalisation time, and whose obstruction relief is efficient, but needs to stand the test of time.