When is bariatric surgery performed?

Obesity is the increase in body weight relative to height above the desired level as a result of an excessive increase in the ratio of body fat mass to lean mass. Obesity is defined by the World Health Organization (WHO) as excessive accumulation of fat in the body to the extent that it impairs health. Body Mass Index (BMI) is widely used to determine obesity based on the obesity classification of the World Health Organization. BMI is a value obtained by dividing the body weight (kg) of the individual by the square of the height (in m) (BMI=kg/m2). A person with a body mass index (body mass index) calculation value over 30 is considered obese, and a person over 40 is considered morbidly obese.