Gastric bypass surgery is a transformative option for individuals struggling with severe obesity and related health issues. By altering the digestive system, it promotes substantial weight loss and can lead to significant improvements in overall health and quality of life. However, it is essential for patients to understand the procedure of gastric bypass surgery, potential advantages and disadvantages, necessary dietary and lifestyle changes, side effects and complications, success rate and outcomes, expectations before and after, and how it compares with other obesity treatment options. Consulting with healthcare professionals can provide personalized guidance and support throughout the journey toward achieving sustainable weight loss and improved health.