The paper presents the International system of overall score estimation of symptoms and life quality for patients with benign prostatic hyperplasia and reviews the results of this system application for objective diagnosis and evaluation of the efficacy of the treatment (chemotherapy, transurethral resection, transvesicular adenomectomy, transrectal hyperthermia, YAG-Nd laser prostatectomy) in 250 patients with benign prostatic hyperplasia. The fault of the system is the absence of specific recommendations for rating objective test results. The authors propose their variant of estimation of prostatic volume, maximal urination rate, residual urine.