Obesity is defined by the World Health Organization (WHO) as more “fat accumulation” than normal in the body, which may impair the health of individuals. Obesity is classified as follows according to body mass index (BMI): BMI between 18.5-25kg/m2 is normal, BMI is between 25-30kg/m2 is overweight, BMI is between 30-40kg/m2 is obese, BMI is 40kgM2 and above is classified as morbidly obese. The first-line treatment of obesity is diet and exercise, but the success rate is around 2%. Bariatric surgery, also called bariatric surgery, helps people with obesity to lose weight by limiting the amount of food they can consume. The goal is to improve health and quality of life, but success also depends on lifestyle changes such as diet and exercise.