Objectives: Studying of the correlation between some of urodynamic indexes with clinical characteristics in symptomatic benign prostatic hyperplasia patients. Material and methods: 34 BPH patients with LUTS were examined in Department of General Surgery in Hue University Hospital from 9/2012 to 74/2013. They were measured urodynamic indexes and the results obtained were compared with the clinical characteristics, IPSS score, QoL score, postvoid residual urine volume and Qmax. Results: There are 20,6 percent patients have detrusor overactivity, poor bladder compliance is 79,4 percent. Group of patients with bladder outlet obstruction (BOO) 70,0 percent
equivocal BOO 10,0 percent
unobstructed 20,0 percent. Group of patients with weak detrusor contractility 46,7 percent, normal 30,0 percent and strong 23,3 percent. Uncorrelated between BOOI - IPSS, BOOI - QoL. High correlation between BOOI and Qmax. These differences are significant between detrusor overactivity with lower bladder capacities, poor bladder compliance, lower BOOI. Conclusion: urodynamic test provides important informations for assessing the situation bladder outlet obstruction due to benign prostatic hyperplasia.