AbstractAmong 971 patients with chronic ulcerative colitis who underwent ilealpouch anal anastomosis during an 8‐year period from January, 1982 to December 1989, 30 patients were randomly selected from each year (total = 240 patients) for an assessment of their long‐term functional results and quality of life as of 1990. Patients undergoing cholecystectomy during each of the same years served as “controls” (20 patients/year, total = 160 patients). All 400 patients completed a written questionnaire that measured bowel habits, overall quality of life, general health, and performance in sports/recreation, travel, sex life, family relationship, occupational work, social activities, and household activities. Ileo‐anal patients had more frequent stools (median, 6 stools/day) and more fecal spotting (68% of patients had episodes) than cholecystectomy patients (median, 1 stool/day, 13% had episodes,p<0.05). In spite of the altered bowel habits, 90% of ileo‐anal patients had an excellent overall quality of life, 76% enjoyed good health, and 91% had good performance scores in the areas examined. In fact, quality of life and performance were similar among ileo‐anal patients and cholecystectomy patients. Moreover, quality of life and bowel habits remained steady in both groups of patients during the 8‐year follow‐up. In conclusion, functional results were satisfactory and quality of life was excellent after ileal pouch‐anal anastomosis; neither deteriorated as patients aged over an 8‐year period after operation.