Yuji Nishizawa, MD, PhD, is a colorectal surgeon at the National Cancer Center Hospital East, Japan. He received his medical degree from Kagawa University and has dedicated his career to colorectal cancer surgery, minimally invasive surgery, functional preservation, and regenerative medicine. Dr. Nishizawa currently serves in the Department of Colorectal Surgery and is also involved in healthcare quality management and clinical research development. His research interests include rectal cancer treatment strategies, lateral lymph node dissection, low anterior resection syndrome (LARS), stoma-related complications, shared decision-making, and adipose-derived stem cell therapy for fecal incontinence. He has authored numerous peer-reviewed publications and serves as a reviewer for several international journals in colorectal surgery and oncology. He is actively involved in developing evidence-based approaches to improve both oncological and functional outcomes for patients undergoing rectal cancer treatment. Dr. Nishizawa is a board-certified colorectal surgeon and an active member of several professional societies, including the Japanese Society of Coloproctology, the Japan Society of Wound, Ostomy and Continence Management, and the Japanese Society for Cancer of the Colon and Rectum. His current work focuses on integrating digital health, artificial intelligence, and regenerative medicine into survivorship care after rectal cancer treatment.