Laparoscopic gastric bypass surgery began in 1994 and has become the internationally recognized gold standard procedure in bariatric metabolic surgery due to its strong weight loss effect and low surgical risk. It optimizes the structure of the gastrointestinal tract in obese patients through a minimally invasive approach with laparoscopic navigation. This is because obese patients gain weight, usually due to excessive intake or abnormal body absorption and metabolism. After laparoscopic gastric bypass surgery to optimize the gastrointestinal tract, food intake, absorption, and metabolism can be normalized, so that weight can be controlled. Generally, obese patients who have undergone gastric bypass surgery can lose 8-12 pounds within one week after surgery, and lose 60 pounds in 3 months on average. As long as the obese patient’s weight is reduced to the standard range, he or she will not lose any more weight, and will be able to maintain the standard weight for the rest of his or her life without rebounding. And more importantly, gastric bypass surgery has become the most effective way to treat diabetes. Results: Studies have shown that patients who underwent weight loss and diabetes surgery were able to achieve complete remission of blood sugar in patients with type 2 diabetes compared to those who were treated with only traditional medications. Diabetes remission is defined as glycosylated hemoglobin <6.5% and no medications. In addition, weight loss and diabetes surgery can significantly address or improve type 2 diabetes and other obesity comorbidities. Studies have shown that bariatric and diabetic surgery resolves or improves diabetes in 86% of patients, improves hyperlipidemia in 70% or more of patients, resolves or improves hypertension in 78.5% of patients, and resolves sleep apnea in 85.7% of patients. Along with blood sugar control, undergoing weight loss and diabetes surgery also reduces the use of medications for complications such as diabetes, hypertension, and hyperlipidemia, and provides varying degrees of improvement in patients' overall health, emotional well-being, physical and social functioning, pain relief, and personal energy recovery.