The authors have had contact with 508 cases of perineal surgery receiving various kinds of anesthetic methods and these cases who were analazed at the Department of Anesthesiology, Ewha Womans University Hospital during the 5 year period from January 1976 to December 1980. The results are as follows: 1) There is the trend towards increasing numbers of perineal operations annually. 2) Ratio of males to females was 1.1:1.0. 3) Spinal anesthesia was the most commonly used technique(56.9%). 4) For geriatric patients, selection of anesthesia was regional aensthesia rather than general anesthesia. 5) The most common diagnosis and performed operation was hemorryhoidectomy and other perianal procedures(61.2%). 6) For premedication, demerol and atropine were commonly used(50.2%). 7) Most cases ended within 30minutes(62.8%). 8) Saddle block was satisfactory for perineal operation. And for this level, 6~8 mg of tetracaine was sufficient in spinal anesthesia.