During sleeve gastrectomy, alternatively known as vertical sleeve gastrectomy and VSG, the stomach is reduced to a fraction of its original size. This is achieved by removing part of the stomach.Sleeve gastrectomy is performed for those whose BMI falls above 30 And with co morbid diseases above 27.5 for Asian patients. Single-incision sleeve surgery is performed using an incision in the navel—this is done to give the patient minimal scarring and better aesthetic results.

After surgery, patients will only be about to eat limited portions of foods, thus losing weight more quickly.According to the Bariatric Surgery Resource, gastric sleeve surgery results in 30 to 60% extra weight loss within the first 12 months of the procedure.