One-year Prospective Observational Study of BMI Change Effect of 5-alpha Reductase Inhibitor in Korean BPH Patients

It is widely-accepted that serum testosterone level and BMI (body mass index) representative of the degree of obesity has negative correlation. Considering the fact that obesity is being mentioned as a risk factor for development of prostate cancer as well as other various life-threatening diseases (example: cardiovascular problems), the effect of BPH treatment agents on BMI is a subject that should certainly be elucidated. Meanwhile, to our knowledge, no prospective study has so far been performed on such issue in Asian population. Prior to generating hypothesis of the effect of 5 alpha reductase inhibitor on BMI, the real effect of 5 alpha reductase inhibitor on BMI change in Korean BPH patients has to be observed in real clinical practice. This study will test the effects of one-year medication of 5 alpha reductase inhibitor on BMI among Korean men with BPH.