Gastric bypass revision refers to a corrective surgical procedure performed on patients who have previously undergone gastric bypass but are experiencing complications or insufficient weight loss. Over time, some patients may regain weight or face issues such as pouch enlargement, poor restriction, or metabolic changes. Revision surgery aims to restore the effectiveness of the original procedure by adjusting or reconstructing the stomach and intestinal pathways. It is a complex but valuable option for improving long-term weight management, enhancing metabolic health, and addressing post-surgical complications when lifestyle and medical management alone are not enough.