PURPOSE: Hemorrhoidectomy can be associated with severe pain in the immediate postoperative period. The aim of this study was to evaluate the advantages and feasibility of hemorrhoidectomy under local anesthesia (pudendal nerve block). METHODS: From september 1998 to August 2000 we performed 77 hemorrhoidectomy with local anesthesia in our Colorectal unit under the ambulatory surgery regimen. 0.5% lidocaine and 0.25% bupivacaine mixed by 1:1 ratio were used for pudendal nerve block and local anesthesia. RESULTS: Using pudendal nerve block, ambulatory hemorrhoidectomy with or without band ligation were done in 77 patients. Male to female ratio was 46:31, mean age was 35.2 years. 3 major piles plus 1 minor pile were present in 40 patients (51.9%). We injected mixed lidocaine and bupivacaine solution through external sphincter and puborectalis muscle. All patients were successfully operated without conversion to general anesthesia or even intravenous anesthetic injection. Postoperative pain of them were compared the patients who were operated hemorrhoidectomy under general (spinal or caudal) anesthesia during the same time. The pain were assessed using verbal rating pain scale at 24 hours, 48 hours and 72 hours (1-10, where 1 presented no pain and 10 represented the worst pain imaginable) by phone call examination. Mean pain scores for pudendal anesthesia group at 24, 48, 72 hours were 5.32, 3.07 and 2.21, respectively, compared with other anesthesia group with 6.47, 4.52 and 3.24. These differences were statistically significant (P value<0.05). Post operative pain was successfully controlled with home care and oral medications. CONCLUSIONS: Under local anesthesia with pudendal nerve block, ambulatory hemorrhoidectomy were able to decrease pain and urinary retension in comparison to spinal or caudal anesthesia group. Ambulatory hemorrhoidectomy is useful, low cost and feasible.