Objective To compare the efficacy of patient-controlled epidural analgesia(PCEA) and routine analgesia on treatment of bleeding in patients prostate pit after prostatectomy.Methods 82 patients underwent prostatectomy were randomly divided into two groups:patient-controlled epidual analgesia(n=40) and routine postoperative analgesia (n=42).Results As compared with control group,the rate and duration of bladder spasm were reduced significantly in PCEA group(P