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Prostate cancer is the most common solidorgan cancer in men and one of the leading causes of death.Radical prostatectomy is the gold standard for the localized cases.Unfortunately, radical prostatectomy is associated with erectile dysfunction and penile shrinkage even under cautious cavernous nerve preservation.To improve the patients quality of life and the acceptance of the radical prostatectomy, penile rehabilitation after radical prostatectomy is now widely applied in clinical practice.