Gastric bypass surgery / Top clinic in Germany, Friedrichshafen

Gastric bypass surgery in Germany

Gastric bypass surgery is an excellent solution for uncontrolled obesity. Weight loss is achieved via two mechanisms. On the one hand, gastric bypass surgery reduces the volume of the stomach so that less food can be consumed, and, on the other hand, it reduces the period of digestion.

The body has less time and distance in which to absorb nutrients. Gastric bypass surgery cannot be reversed and a change of lifestyle after the procedure is essential. Our specialist surgeons at our Clinic in Germany are extremely experienced in this field of medicine.

Description of gastric bypass surgery

Gastric bypass surgery, the innovative technique of Gastroenterology in Germany, uses two mechanisms to assist in the reduction of the BMI. Only a very small portion of the stomach that is retained and the rest is separated from the digestive tract. This ensures that the patient is only able to consume small amounts of solid food. Part of the small intestine is also bypassed during the operation, considerably reducing the section that is responsible for removing nutrients from the food. Up to 40% of fat consumed is eliminated in undigested form.

However, this gastric surgery can have unpleasant side-effects. If the patient consumes too much fat or sugar, dumping syndrome can occur, whereby the food leaves the stomach and enters the small intestine too rapidly, causing nausea, abdominal cramps and diarrhoea because the small stomach that has been retained has no pylorus – the natural conjunction of stomach and small intestine. This discomfort is an effective method of forcing compliance in patients who consume lots of sweets and sugar-rich drinks. Our surgeons in Friedrichshafen, Germany, have a great deal of experience in this area of medicine.

The operation at our clinic in Germany

In gastric bypass surgery, a large portion of the stomach is separated from the rest of the stomach, so that the oesophagus ends in a mini stomach reducing the volume of the stomach enormously. The remaining portion of the original stomach becomes inactive, no longer performing the storage function, although it is retained in the body. The small intestine is then severed and connected directly to the remaining functional portion of the stomach. This procedure is performed many times every year throughout Germany.

The gastric juices required for digesting fat are also re-routed. They only come into contact with the partially digested food towards the end of the small intestine, thereby reducing the digestion of fat. Undigested fat is eliminated from the body. This type of surgery is very useful because obesity is on the increase in Germany.


With gastric bypass surgery, patients lose 60 to 70% of their excess weight. Some patients even reach their ideal weight. Another advantage is that this operation improves or even heals existing diabetes. Often, the blood sugar levels normalise shortly after the procedure, although the patient has not yet lost much weight. Diabetes is also increasing in Germany.


Gastric bypass surgery is a major surgical procedure. Many incisions and sutures are required and the effect on the gastrointestinal system is considerable. Classical risks of the procedure are haemorrhaging, damage to other organs, infections, wound-healing problems and problems as a result of the anaesthetic.

After the operation, the patient must take nutritional supplements for the rest of his life because the bypass surgery limits the absorption of essential substances e.g. Vitamins B1 and B6, folic acid, iron and calcium. If these supplements are not taken regularly, problems such as osteoporosis and anaemia will result later. Excessive consumption of fat and sugar could result in flatulence, nausea and abdominal discomfort or even vomiting and diarrhoea.

Gastric bypass surgery at Friedrichshafen Clinic in Germany – Who qualifies for the operation?

Gastric bypass surgery is an option for patients with a BMI over 40. In the case of accompanying diseases such as diabetes, which could improve with weight loss, patients with a BMI of 35 are also considered.

The prerequisites are that the patient has already made several unsuccessful attempts to lose weight under the guidance of a physician. The patient should not be younger than 18 or older than 65. Contact us at our clinic in Germany for more information.

Type 2 diabetics in particular can benefit from this operation – the blood sugar level often drops drastically shortly after the bypass operation. Gastric bypass surgery is also suitable for people who consume a lot of sweets and sugary drinks, as opposed to a sleeve gastrectomy or a gastric band, in which the patient doesn’t lose weight after the operation if he continues to consume too much sugar in this form. In gastric bypass surgery, the sugar-tolerance of the patient is greatly reduced.

Our experienced surgeons at Friedrichshafen Clinic, Germany guarantee a high degree of safety and the best possible results. Your health in good hands!

Gastric bypass surgery

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Comments and questions

Lina Seselgiene Wed, 01 Nov 14:48


I would like to ask you, what kind of operation is right for me to loose weight? For 4 years my weight is 85 kg, my height is 157 kg.

Thank you so much,
Lina Seselgiene

Ilona Tue, 22 Aug 22:41

Good Day,
I am writing in a search to help a friend of mine. The obesity led her to have mental problems and binge eating and I believe that a surgery is the right solution for her at the moment. As we need to act quickly I would like to know to what extent can a German insurance cover the surgery if it is possible. Thank you in advance.

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Medical Staff

Prof MD Christian Arnold

Prof MD Christian Arnold
Head of the Gastrological Department

MD Karl Winkler

MD Karl Winkler
Head physician assistant

MD Thomas Günther

MD Thomas Günther
Senior physician

MD Inga Münkle

MD Inga Münkle
Senior physician

MD Gunda Millonig

MD Gunda Millonig
Senior physician

Ursula Fecht

Ursula Fecht
Medical secretary



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