Biruni University Hospital is considered a reference center in Bariatric Surgery.

Surgical interventions applied to people with a Body Mass Index (BMI) higher than 40 or BMI higher than 35 and who have some chronic diseases and significant health problems are called "Bariatric Surgery" or Obesity Surgery. Obesity surgeries are performed in Biruni University Hospital with a secure method, and the patient's recovery time is shortened.

All Obesity and Metabolic Surgery methods are successfully applied at Biruni University Hospital. Our university hospital, which provides world-class services with technical equipment and experienced surgeons, accepts patients, mainly from Europe, America, and worldwide. Sleeve Gastrectomy is an operation that we call a stomach tube. On average, it accounts for approximately more than 60% of the obesity surgery methods performed in the world. In this method, the stomach volume, which is about 1.5 liters, is brought to the size of a banana, and the foods we take are restricted. At the same time, Ghrelin, which we call the hunger hormone secreted from the stomach, also decreases after this operation, and the patient feels less hungry. With this operation, only the volume of the stomach is reduced. It does not affect absorption. For this reason, it is preferred as the most compatible operation with the human body.

By-pass surgery operations are successfully performed in our hospital. The stomach is made the size of a matchbox, and the small intestines are connected to this newly created part of the stomach. In this way, the foods we eat pass directly to the middle part of the small intestine, preventing the absorption of the foods we eat. This type of surgery is preferred in this patient group because it is more effective, especially for Type 2 Diabetics who use insulin.


Obesity is a medical condition, which can be defined as abnormal or excessive fat accumulation in an individual’s body that presents a risk to health. That definition is given by the World Health Organisation. If a person reaches BMI 30 or more, it means that he or she is obese.


Usually people either deny being obese and overweight or they are not aware of this condition. According to statistics, obesity is a global problem and more attention should be drawn to this condition.

As reported by the World Health Organisation, there are at least 700 million obese people all over the world, predominantly women. Overall, about 22,3% of Turkey’s population struggle with obesity in Turkiye. By 2040 every tenth person will be obese.


Obesity increases the chances of developing the following disorders: cardiovascular diseases, problems with skin, breathing difficulty (dyspnoea), snoring, sleeping apnoea and disorders, heavy sweating, joints pain, kidney diseases, diabetes, high cholesterol, chronic fatigue syndrome and even depression, which can affect the quality of one’s life tremendously.

In case an individual’s BMI is less than 30, i.e. he or she is close to being obese, there is still a high risk of the mentioned disorders’ occurrence. Therefore, the first symptom of obesity, even if BMI is less than 30, is unhealthy eating habits and physical inactivity.