ENMost people who look into bariatric surgery in Germany have already lost weight several times and regained it, and they want not one more diet but a decision that holds. They have also read that in Germany an operation is not booked on request.
Both are true. This page explains what a German centre checks before agreeing, which operations are actually performed and what happens in the years after. For the wider picture, see obesity treatment in Germany.
Which operations are meant
In these operations the surgeon changes the size of the stomach, the route food takes through the bowel, or both. A smaller meal becomes enough, and the hormonal signals of hunger and satiety change. Weight follows the change in eating, not the other way round.
A sleeve gastrectomy removes a large part of the stomach and leaves a narrow tube. A gastric bypass joins a small stomach pouch directly to a loop of small bowel. The adjustable band is now used far less often. The balloon, swallowed or placed with an endoscope, is not surgery at all and works only while it is in place. Three of them have their own pages: gastric bypass, gastric band and gastric balloon.
None of them is cosmetic, and each changes eating for life. That is why weight loss surgery in Germany is discussed as the treatment of a chronic disease, not as a shortcut.
Who a German centre says yes to
A German centre says yes when written criteria are met: for bariatric surgery in Germany, the patient’s wish does not decide the indication. German medical societies publish a guideline on the surgery of obesity and metabolic diseases; its latest version dates from 2018 and is being revised. Once conservative treatment has failed, it considers surgery from a body mass index (BMI) of 40 kg/m², or from 35 kg/m² with obesity-related diseases such as type 2 diabetes. From a BMI of 50, no prior conservative attempt is needed; in type 2 diabetes, metabolic surgery can be considered from a BMI of 30.
Before a date is set, the centre also checks whether conservative treatment was genuinely tried, whether hormonal causes, including thyroid disease, are excluded, how the heart and lungs will cope with anaesthesia, and whether the patient can take vitamins and attend check-ups for life.
Surgery is refused or postponed with an untreated eating disorder, an unstable mental state, active substance dependence, unwillingness to change eating, or the expectation that the operation will do the work alone. A refusal is a medical answer, not a formality, and is better heard before the flight.
What the assessment before the operation looks like
The assessment means seeing several specialists: besides the surgeon, an endocrinologist or diabetologist, a dietitian, a psychosomatic specialist or psychologist, an anaesthetist and often a gastroenterologist, who first looks into the stomach with an endoscope. Planned operations in general are covered under surgery in Germany.
Send in advance the weight history with dates, records of earlier attempts, current laboratory results, a list of medicines with doses, and previous endoscopy or imaging reports. Without a weight history, the German team cannot confirm that conservative treatment was tried.
The surgeon proposes one operation and explains why exactly that one, given reflux, diabetes, previous abdominal surgery and eating pattern. A centre that offers all methods equally and lets the patient choose is a warning sign, not a courtesy.
The hospital stay and the first weeks
The operation is laparoscopic, through small incisions, followed by a few days on the ward. Eating is built up in steps from liquids to soft food, and walking starts early. After discharge, the patient stays in Germany for an agreed number of days before flying, set by the surgeon, not the patient.
At home, the first weeks mean small portions, slow eating, and vitamins and minerals from the start. Some complaints need a doctor quickly instead of waiting: persistent vomiting, fever, severe pain, black stool.
The years that follow
This part is easy to overlook: after bariatric surgery, follow-up is lifelong. It includes blood tests for iron, vitamin B12, vitamin D and calcium, an annual review, adjusting diabetes and blood pressure medicines as weight falls, and often a talk about the loose skin that remains.
If the follow-up will be at home, agree before the trip who supervises it, which tests are due and when, who prescribes the vitamins and how a question reaches the surgeon. Follow-up organised by the same team is worth more than a lower price (see the cost of bariatric surgery in Germany).
Frequently asked questions
Can I choose the type of operation myself?
Your wishes are heard, but the surgeon proposes the operation and explains why. There is no universal standard: with reflux or type 2 diabetes, a bypass usually works better than a sleeve, and earlier abdominal surgery and eating habits count too. Ask again before consenting if the reasoning is unclear.
How long will I need to stay in Germany?
Nobody can name an exact number of days in advance. The stay adds up from the assessment, the operation, a few days on the ward and an agreed period after discharge set by the surgeon, so a changeable return ticket is more practical.
Will I need vitamins for the rest of my life?
Most likely, yes. The guideline considers preventive vitamin and mineral supplements necessary after any such operation, and lifelong after a bypass. Doses follow blood tests for iron, vitamin B12, vitamin D and calcium. Only the doctor running the follow-up should stop or change them.
How AlenMed arranges bariatric surgery in Germany
AlenMed sends the weight history, laboratory results and earlier reports to a certified centre for obesity and metabolic surgery. Partners include the DRK Kliniken Berlin, where Prof. Gero Puhl, chief physician of the Clinic for General, Visceral and Minimally Invasive Surgery, heads the Centre for Obesity Surgery at the Mitte site; the Sana Klinikum Offenbach, with its own obesity surgery department; and the Diakonie-Klinikum Stuttgart, which runs a centre for obesity and metabolic surgery. The surgeon says whether surgery is indicated at all, and the answer may be no.
Then come a written estimate, a visa invitation, an interpreter at the consultation, the consent talk and discharge, accommodation for the days after hospital, and a translated final report for the doctor at home.
This material is for information only and is not an offer. The indication and the method are decided by a doctor in person.