Introduction: Colorectal cancer (CRC) is the third most common cancer and the second leading cause of death worldwide, with an incidence of 10.2%. The treatment of CRC has evolved over the past 25 years. Two surgical procedures are used: abdominoperineal resection (APR) and low anterior resection (LAR) and ultra-low anterior resection (ULAR). The recurrence rate and quality of life are similar between these approaches. Objective: To compare the quality of life of rectal cancer patients treated with abdominoperineal resection versus conservative sphincter-preserving surgeries: low anterior resection (LAR) and ultra-low anterior resection (ULAR) at UMAE of Puebla. Methods: A comparative, observational, cross-sectional study was conducted on CRC patients treated between 2015 and 2019 at a tertiary-level hospital in Puebla. Two groups were formed: those managed with APR and those manage...