Abstract
Experience from various clinical materials shows that diagnosis of prostatic carcinoma by rectal palpation is approximately 50% accurate. Since the treatment of this disease has serious sequelae, an exact diagnosis must be made whenever possible. Prostatic biopsy is the most reliable diagnostic method, preferably by perineal or transrectal puncture. Histo-pathological examination of tissue fragments and cytological analysis of aspirated cell material appear to be of equal value.