Even though urethral length, functional or anatomical, has been reported to be important regarding the recovery of urinary continence after radical retropubic prostatectomy (RRP), obtaining adequate urethral length during RRP can prove difficult when apical prominence is present. We investigated the impact of variations in the shapes of prostatic apex observed on preoperative magnetic resonance imaging (MRI) on patients' status regarding urinary continence after undergoing RRP along with the prevalence of such variations.