Bariatric surgery includes a variety of procedures performed on people who have obesity. Weight loss is achieved by reducing the size of the stomach with a gastric band or through removal of a portion of the stomach or by resecting and re-routing the small intestine to a small stomach pouch.

The success rate of bariatric surgery is 50 percent.  The Patients may regain a small amount of weight (approx 5 percent) two years or more following their surgery.