This book examines the latest indications and techniques for various endoscopic and surgical colorectal cancer treatments, discussing not only on the standard lymph node dissection technique, but also on laparoscopic and robotic surgery. It particularly focuses on the treatment of rectal cancer, with chapters on radiation therapy and sphincter preservation, which is analyzed from Asian perspectives that differ from those of Western treatment. Further, it presents the results of combining chemotherapy and oral drugs, as well as the treatment of hereditary cancer using next-generation sequencing for genetic diagnosis.