Among the methods of obesity surgery, gastric balloon (which stays in the stomach for 6 months up to 1 year) is an easy, safe and effective method which is done by endoscopy in order to shorten the surgical treatment method and to limit the anesthesia intake in those who have difficulty in weight loss with sport and diet. This technique is very important for reducing surgical complications in patients with an excess of 10-15 kg or patients with BMI 50 or greater. In this method, a balloon with a blue liquid in the size of 400-600 cc is placed in the stomach, so that the volume of the stomach is restricted and a fullness in the stomach is formed and a feeling of fullness is provided. This technique is not a permanent method of weight loss since it will be removed from the stomach after a certain period of time. For this reason, it is very important to make healthy eating habits a lifestyle in this technique.