With the aging of the population, prostate hyperplasia is more and more perplexing to the old men. This study aimed to evaluate the predictive value of international prostatic symptom score-voiding/storage score ratio (IPSS-V/S), urodynamic examination, intravesical prostatic protrusion (IPP) and residual urine volume (RUV) on the efficacy of holmium laser enucleation of the prostate (HoLEP) before operation.