We reviewed the records of 64 patients who underwent a transurethral prostatectomy by one surgeon (MUK) between February 1995 and November 2995. The objective was to see if routine preoperative cross matching blood was necessary for the operation. Intraoperative blood transfusion was required in only 9 (14%) patients. These patients had large prostates; the average mount resected in these 9 patients was 56.89 grams. On the whole, the required for patients who have large prostates on clinical and ultrasound examination.