In contemporary era of rectal cancer treatment, development of surgical technique and tool, adaptation of chemoradiation therapy, as well as multidisciplinary approach have led increased survival as well as rate of sphincter preservation. However, poor anorectal function, such as fecal incontinence and/or urgency, has also been increased. Such anorectal dysfunction is named as low anterior resection syndrome, and its rate has been reported in 40 to 90% in rectal cancer patients who received sphincter preserving surgery. Low anterior resection syndrome is known to debilitate quality of life in survivors of rectal cancer. Previously, several studies attempted to evaluate the low anterior resection syndrome via questionnaires and scoring system. Adapting the low anterior resection syndrome score system created in Denmark, this study investigates the validity of the scoring system in Korean language.