Traditional treatment of diabetes is also known as non-surgical treatment. The non-surgical treatment plan is based on a comprehensive program of diet, pharmacotherapy, insulin injections, behavior modification and regular exercise. Most sugar lovers keep their blood glucose values within a stable range through the action of hypoglycemic drugs and artificial insulin as well as by means of diet and fasting, but once the medication and insulin injections are stopped, the blood glucose will immediately rise again, and in serious cases, various complications will occur, so the root cause of diabetes is not blocked. Not only that, but long-term medication will also continue to destroy the body’s functions and cause serious harm. Gastric bypass surgery is a good choice for obese type 2 diabetic patients. It can remove insulin resistance, cure diabetes, free patients from lifelong medication, and help patients lose weight, killing two birds with one stone. Compared with traditional treatment, the advantages of gastric bypass surgery are: 1. The cure rate of type 2 diabetes treated by gastric bypass surgery is high, up to about 85% of type 2 diabetes patients will be completely normal after surgery, with normal blood sugar and normal glycosylated hemoglobin, and patients can get rid of lifelong medication and do not need to control their diet. After gastric bypass surgery, insulin resistance is gone, pancreatic islet function is improved, and diabetes is gone. 2.Gastric bypass treatment for type 2 diabetes also treats obesity and its complications. On the one hand, it can make the diabetes recovered, and in addition, most patients’ complications such as numbness of hands and feet, retinopathy, diabetic foot, abnormal urine protein and hypertension are relieved or even cured to different degrees. 3. Reduce the financial burden of patients in the long run. The cost of one surgical hospitalization may feel increased, but according to the survey, traditional treatment for more than 5 years of illness is even more costly. And with the cost of only one surgery, most patients can get rid of drugs, keep their blood sugar normal for a long time, and block or alleviate complications, which in the long run reduces the economic burden instead. 4. Gastric bypass surgery improves endocrine while treating diabetes: endocrine disorders such as polycystic ovary syndrome can be improved after the surgery.