Surgical treatment of obesity began in the 1950s, and there are three categories of surgical approaches to treating morbid obesity, depending on the principles of weight loss caused by different surgical approaches: restricting intake, reducing absorption, or both. Bariatric principles of surgical procedures Bariatric surgeons first begin to identify the potential effects of surgical weight loss when performing surgery to remove most of a patient’s stomach and intestines. After surgery, the surgeon notes that in many cases, the patient does not maintain the weight they had before surgery. Through further research, bariatric surgeons are able to recommend similar corrective measures that can safely enable patients with extreme obesity to achieve weight loss. Over the past decade, these procedures have been continually refined to improve surgical outcomes and minimize risk. Today’s bariatric surgeons have been provided with substantial clinical data to help them determine which bariatric procedures should be used and why they should be used. Currently, there are two basic surgical options to achieve your weight loss dreams: a. Restrictive surgery to reduce food intake. b. Malabsorptive surgery that alters digestive capacity, which causes food to be poorly digested and incompletely absorbed so that it is excreted in the form of feces. In addition, combination surgery utilizes the advantages of both restrictive procedures and malabsorptive surgery. Currently, the most commonly used surgical procedures for weight loss are adjustable gastric banding, sleeve gastrectomy (restriction of intake), and gastric bypass (restriction of intake and reduction of absorption), all of which can now be done laparoscopically. Compared with traditional surgical methods, they have the advantages of small incisions, less bleeding, less pain, faster recovery, and fewer complications. From 2011 to 2012, I studied in Germany and the United States as a visiting scholar, focusing on laparoscopic bariatric surgery for the treatment of morbid obesity, combined with obesity, type 2 diabetes and other metabolic diseases, and have performed gastric bypass surgery and “sleeve gastric” surgery more than 80 times, obtaining satisfactory clinical results.