After sleeve gastrectomy, 80% of the excess weight is lost. This process takes 9 months. With regular life and healthy nutrition, the weight lost is not regained. However, reasons such as arbitrary lifestyle and careless eating and snacking habits, excessive alcohol consumption may lead to some weight gain again. Even if the old weight is not reached, the person may be unhappy in the intermediate weight. Fortunately, the rate of weight regain in a standard sleeve gastrectomy does not exceed 18% in 5 years.