Metabolic surgery surgery, popularly known as diabetes surgery; If there is metabolic syndrome in obesity patients, it is applied to type 2 diabetes patients even if they are not obese patients. In these processes, the food intake of the stomach is reduced and the hormonal changes provided by the disablement of some of the small intestines are used. In some patients, only obesity surgery is sufficient. However, metabolic surgery is more suitable, especially if there is type 2 diabetes. For this purpose, there are 3 basic metabolic surgery applications applied in clinical practice. All surgical techniques can be safely applied by laparoscopic (closed method) in experienced hands. In this way, the patient heals quickly and the hospital stay is minimized.