Colorectal cancer is the second and the third most common cause of death from neoplastic disease in men and women, respectively, of all ages globally and is the fourth cause of death among cancers in Korea. Recently, laparoscopic surgery has been used for colorectal-cancer surgery. However, many colorectal surgeons are reluctant to perform laparoscopic surgery in older patients, given the vulnerable cardiopulmonary compliance, unstable perioperative hemodynamics, hypercapnia during longer operation times with exposure to the risk of CO2 pneumoperitoneum, and the steep Trendelenburg position.Adjuvant chemotherapy for elderly, stage-III, colorectal cancer patients can increase the long-term survival. Based on these findings, surgeons have no reason to be reluctant to perform either open or laparoscopic radical surgery for the treatment of patients with colorectal cancer, and adjuvant chemotherapy should be considered fort geriatric, colorectal-cancer patients.