What has already been proven by numerous international studies (1) has now been confirmed by the leading experts: Prostate cancer patients who receive brachytherapy (internal radiation) suffer significantly less frequently from impairment of their potency after treatment. Urinary incontinence, which is as high as 50 percent after radical removal of the prostate (2), is also vanishinglylow at 0.3 to 3 percent after seed implantationand actually only occurs after previous transurethral prostate resection (TURP).