Gastric bypass in Turkey: what you should know before you book
Gastric bypass is one of the two most performed weight-loss operations in the world, alongside the gastric sleeve. It makes the stomach very small and reroutes food past the first part of the small intestine, so you feel full after small portions and the hormones that control hunger and blood sugar change. Many patients travel for it because waiting lists at home are long and private prices are high. On our site gastric bypass in Turkey starts at €4,370 at an accredited hospital — the hospital's own list price for international patients.
A gastric bypass is not a cosmetic procedure and not a quick fix. It is major abdominal surgery that changes how you eat for the rest of your life, and it only works well with dietitian support, lifelong vitamin supplements and regular blood tests. The result depends on choosing the right operation for you, on an experienced bariatric team and on follow-up that continues after you fly home. This guide explains what you pay for, how a Roux-en-Y bypass differs from a mini gastric bypass and from a sleeve, who is eligible, how the trip and recovery work, what published data say about the risks and what to check before you pay anything.
The hospitals that perform gastric bypass surgery in Turkey on our site are listed on this page with their prices, and the surgeons with their experience and reviews. A quote is free, and you decide only after a surgeon has looked at your health details.
Gastric Bypass in Turkey: how it works
- 1Send your photos and questions
Free and without obligation: tell us what you want to change and send a few photos — by form or WhatsApp.
- 2Get a written plan and price
A surgeon reviews your case and you receive a personal plan with the price, usually within 24 hours. Compare hospitals; nothing is paid in advance.
- 3Travel, surgery and aftercare
Airport pick-up, examination, surgery and check-ups in Istanbul, then follow-up with your surgeon after you fly home.
Gastric Bypass in Turkey: hospitals and prices
Hospitals on our site that perform Gastric Bypass, with each hospital's own list price for international patients, shown in your currency.
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Price from€4,370 Get price
Types of Gastric Bypass in Turkey and prices
| Type | Price in Turkey | |
|---|---|---|
| da Vinci Gastric Bypass Surgery | Price on request | Get price |
| Mini Gastric Bypass | Price on request | Get price |
- Within about 2 hours
A coordinator replies in your language by WhatsApp or e-mail.
- Within 24 hours
A surgeon reviews your photos and you receive a written plan with the surgeon's name and the price.
- You decide
Ask anything and take your time — nothing is paid in advance.
Why plan Gastric Bypass in Turkey with Treat Journey?
- Free for patients
Searching, comparing and requesting quotes costs nothing. You pay the hospital directly, at the price in your written quote — never a pre-payment to us.
- Real hospital prices, published
Every price on this page is the hospital's own price for international patients, shown live in your currency, with what the package includes.
- A named surgeon and a written plan
Your quote names the surgeon and the hospital and lists exactly what is included — no anonymous packages.
- Licensed hospitals only
We list licensed hospitals with an international patient department; accreditations such as JCI are shown on each hospital page.
- Honest reviews
We show real patient reviews, including Google reviews and critical ones, and we never invent ratings.
- Support before, during and after
A coordinator in your language answers within hours, arranges transfers and an interpreter, and stays in touch after you fly home.
How much is gastric bypass in Turkey?
At the hospital listed on this page a gastric bypass costs from €4,370, shown in your currency in the hospital list. Across the Turkish market, packages for international patients mostly fall between about €3,500 and €6,500, depending on the hospital, the technique and how many nights are included; robotic surgery and revision surgery cost more. A price far below that range usually means a short stay, no dietitian, a surgeon you only meet on the day or costs that appear after you arrive.
The table compares typical self-pay totals for a laparoscopic gastric bypass. Turkish prices are hospital package prices; the other figures are approximate private-sector prices and vary between hospitals and cities.
| Country | Typical self-pay price of a gastric bypass | What is usually included |
|---|---|---|
| Turkey | from €4,370 | Surgeon, anaesthesia, pre-operative tests and gastroscopy, 3–4 nights in hospital, leak test, medication, dietitian, transfers; hotel nights often included |
| United Kingdom | about £10,000–£15,000 | Surgeon, anaesthesia and hospital stay; aftercare programmes vary |
| United States | about $20,000–$30,000 | Surgeon, anaesthesia and facility fees, often billed separately |
| Germany | about €10,000–€15,000 | Surgeon, anaesthesia and hospital stay |
Gastric bypass cost UK — and can you have it on the NHS?
The private gastric bypass cost in the UK is usually about £10,000–£15,000, more in London. The NHS does fund weight-loss surgery, following NICE guidance: usually for a BMI of 40 or more, or 35–40 with a condition that weight loss would improve, such as type 2 diabetes or high blood pressure, and sometimes from a BMI of 30 for recent-onset type 2 diabetes, with lower thresholds for people of South Asian, Chinese, Black African or Caribbean family background. You also need to have tried a specialist weight-management programme first, and waiting times in many areas are long. That is why many UK patients compare the NHS route with private surgery at home or abroad.
What makes one gastric bypass more expensive than another:
- Type of bypass: a mini gastric bypass takes less operating time than a Roux-en-Y bypass, but prices are often similar because the equipment (staplers) is the main cost.
- Robotic surgery: a da Vinci gastric bypass costs more than standard keyhole surgery because of the robot and its instruments; results in studies are similar to laparoscopic surgery in experienced hands.
- Revision surgery: converting a sleeve or a band to a bypass takes longer and carries more risk, so it is priced higher.
- Your health: sleep apnoea, heart disease or a very high BMI may require extra tests, a longer stay or a night in intensive care.
- Length of stay: the number of hospital and hotel nights included makes the biggest difference between packages.
What a package usually includes: packages advertised as "gastric bypass Turkey all-inclusive" usually cover the surgeon and anaesthesiologist, pre-operative blood tests, ECG, chest X-ray, abdominal ultrasound and often a gastroscopy, the operation, three to four nights in hospital, the leak test, medication including blood-thinning injections, the first weeks of protein drinks or vitamins at some hospitals, a dietitian session, an interpreter and airport–hotel–hospital transfers, and often hotel nights. Flights, a companion's costs, extra nights and lifelong supplements are usually not included — ask for the list in writing.
Payment: at the hospitals on our site you pay the hospital directly when you arrive, by card or in cash; requesting a quote costs nothing. We do not arrange loans — be careful with any clinic that wants a large deposit by bank transfer before a doctor has reviewed your health.
Types of gastric bypass
"Gastric bypass" covers several operations. All of them create a small stomach pouch; they differ in how the intestine is connected and how much of it is bypassed.
| Type | How it works | Usually chosen for | Main drawbacks |
|---|---|---|---|
| Roux-en-Y gastric bypass (RYGB) | A 20–30 ml pouch is joined to a limb of small intestine; about 1–1.5 m is bypassed, with two connections | Most patients, especially with reflux or type 2 diabetes | Lifelong supplements, risk of ulcers at the join and internal hernia |
| Mini gastric bypass (one-anastomosis, OAGB) | A longer, narrow pouch joined to a loop of intestine about 1.5–2 m down, with one connection | Higher BMI, shorter operating time | Risk of bile reflux; somewhat more malabsorption of vitamins and protein |
| da Vinci (robotic) gastric bypass | RYGB or OAGB performed with a surgical robot | Revisions and some complex cases | Higher cost, longer operating time |
| Biliopancreatic diversion / duodenal switch | A sleeve plus a long intestinal bypass | Very high BMI, selected cases | The most weight loss, but the highest risk of deficiencies and diarrhoea |
The Roux-en-Y bypass has the longest track record, with data stretching back decades. The mini gastric bypass has become popular because it is simpler and loses a similar amount of weight, but because bile can flow back into the pouch, it is generally not the first choice for patients with significant reflux. Your surgeon should explain why one type is recommended for you rather than offering only the one they always do.
Metabolic surgery for type 2 diabetes
When the main aim is to treat type 2 diabetes rather than weight alone, the operation is often called metabolic surgery; on our site it starts at €4,590. Gastric bypass is the most studied metabolic operation: blood sugar often improves within days, before much weight has been lost, because of changes in gut hormones. In the STAMPEDE trial about three in ten bypass patients had near-normal blood sugar without diabetes medicines five years later, compared with very few on medication alone. Remission is more likely when diabetes is recent and the patient does not yet need insulin.
Gastric bypass vs gastric sleeve
Most patients who search for gastric bypass vs gastric sleeve are choosing between the two operations. In a sleeve about three quarters of the stomach is removed and the intestine is not rerouted; in a bypass the stomach is divided but nothing is removed, and part of the intestine is bypassed.
| Question | Gastric bypass (RYGB) | Gastric sleeve |
|---|---|---|
| Typical weight loss | About 60–75% of excess weight in the first one to two years | About 55–70% of excess weight; slightly less than bypass in most long-term studies |
| Reflux (heartburn) | Usually improves — the operation of choice for reflux | Can start or worsen reflux in a significant minority |
| Type 2 diabetes | Slightly higher remission rates | Also effective, slightly less on average |
| Vitamins and minerals | Lifelong supplements essential; iron, B12 and calcium deficiencies more common | Lifelong supplements recommended, fewer deficiencies |
| Reversibility | Technically reversible, but rarely reversed | Not reversible — the stomach is removed |
| Operating time and stay | 2–3 hours; about 5 days in Turkey before flying | 1–2 hours; about 5 days in Turkey before flying |
Two well-known randomised trials, SM-BOSS in Switzerland and SLEEVEPASS in Finland, found that five years after surgery the bypass gave somewhat more weight loss and much less reflux, while the sleeve was quicker to perform and had a few fewer early complications. In practice, a bypass is usually recommended when you have reflux, Barrett's oesophagus, poorly controlled diabetes or a very high BMI; a sleeve is often recommended when you take medicines that must be absorbed reliably, have inflammatory bowel disease or want to avoid the intestinal changes.
Other options: balloon, ESG and band
If you are not ready for surgery or your BMI is lower, less invasive options exist. A gastric balloon is placed through the mouth and stays in the stomach for six to twelve months; most patients lose about 10–15% of their body weight. Endoscopic sleeve gastroplasty (ESG) narrows the stomach with stitches from the inside, without incisions. An adjustable gastric band is now rarely used because many bands are later removed. You can compare all of them on the bariatric surgery page.
Who is eligible for gastric bypass surgery in Turkey?
Turkish hospitals follow international guidelines similar to those in the UK and Europe. You are usually eligible if:
- your BMI is 40 or more, or 35 or more with a weight-related condition such as type 2 diabetes, high blood pressure, sleep apnoea or joint problems;
- your BMI is 30–35 with type 2 diabetes that is poorly controlled despite treatment — in this case it is assessed as metabolic surgery;
- you are between about 18 and 65 years old (older patients are assessed individually);
- you have tried to lose weight with diet and exercise without lasting success;
- you are ready to change how you eat permanently, take supplements for life and attend follow-up.
Who should not have surgery or should wait: people with an untreated eating disorder, active alcohol or drug dependence, severe untreated depression, a heart or lung condition that makes anaesthesia too risky, or an intention to become pregnant within the next 12–18 months. Smokers must stop at least four to six weeks before surgery and should not restart, because smoking greatly increases the risk of ulcers at the join. Read more about obesity and its treatment.
How gastric bypass is performed
A gastric bypass is done by keyhole (laparoscopic) surgery under general anaesthesia, through five or six small incisions, and takes about two to three hours.
- Preparation: for two weeks before surgery you follow a low-calorie, low-carbohydrate liver-shrinking diet. A smaller liver makes the operation easier and safer.
- Pouch: the surgeon uses staplers to divide the upper part of the stomach into a small pouch of about 20–30 ml (in a mini bypass a longer, narrow tube). The rest of the stomach stays in place but no longer receives food.
- Bypass: in a Roux-en-Y bypass a limb of small intestine is brought up and joined to the pouch, and a second join reconnects the digestive juices further down. In a mini bypass a loop of intestine is joined to the pouch in a single connection.
- Leak test: the joins are checked for leaks during surgery, and many hospitals repeat a test with a contrast drink or dye the day after.
You are asked to walk within hours of surgery and receive blood-thinning injections and compression stockings to prevent clots. Most patients stay three to four nights in hospital.
Your gastric bypass trip to Turkey, day by day
Plan five to seven days in Istanbul for a gastric bypass. A typical plan:
- Day 1 — arrival and check-up: airport pick-up and hospital admission. Blood tests, ECG, chest X-ray, abdominal ultrasound, often a gastroscopy, and consultations with the surgeon, the anaesthesiologist, a dietitian and, at many hospitals, a psychologist and an endocrinologist.
- Day 2 — surgery: the operation in the morning or afternoon; you walk a few steps the same evening.
- Day 3 — leak test and first liquids: after a test confirms the joins are sealed, you start sipping water and clear liquids.
- Days 4–5 — discharge: drains, if used, are removed; the dietitian goes through the diet stages and your supplements. You move to the hotel or go straight to the airport if your surgeon agrees.
- Days 5–7 — check and flight home: a final check of the wounds and blood tests, then the flight home once the surgeon confirms you are fit to fly.
- After you are home: follow-up with the hospital's dietitian and international patient team by message or video, and blood tests with your GP at about three, six and twelve months, then every year.
Travel with a companion if you can, and tell your GP before you go — you will need blood tests and repeat prescriptions at home.
Recovery and diet after gastric bypass, week by week
Most people return to desk work after two to three weeks and to full activity after about six weeks. The diet is rebuilt step by step so the joins can heal:
- Weeks 1–2 — liquids: water, clear soup, skimmed milk and protein shakes in small sips, aiming for about 1.5–2 litres of fluid a day. Tiredness and mild pain at the incisions are normal; short walks several times a day help.
- Weeks 3–4 — purées: smooth, high-protein foods such as yoghurt, puréed fish, eggs and lentils, in portions of a few spoonfuls. Eat slowly and stop at the first feeling of fullness.
- Weeks 5–6 — soft foods: minced and soft foods; drink between meals, not with them, waiting about 30 minutes after eating.
- From about week 7 — normal textures: small, protein-first meals of normal food, chewed thoroughly. Bread, rice, dry meat and fizzy drinks are often poorly tolerated at first.
- Months 3–12: weight loss is fastest in the first six months and usually slows by 12–18 months. Hair thinning around months three to six is common and temporary if you eat enough protein.
Dumping syndrome: sugary or fatty foods can pass quickly into the intestine and cause sweating, palpitations, cramps and diarrhoea soon after eating, or low blood sugar one to three hours later. Avoiding sugar and eating protein with every meal prevents most episodes. Alcohol is absorbed much faster after a bypass, so its effect is stronger — many teams advise avoiding it for the first year.
Flying home after gastric bypass
Most surgeons allow you to fly five to seven days after a gastric bypass, once the leak test, wounds and blood tests are normal. The main concern is a blood clot: obesity, abdominal surgery and a long flight each raise the risk. You will usually be given blood-thinning injections to continue for one to four weeks, and you should wear compression stockings on the flight, walk the aisle every hour, drink water in small sips and choose an aisle seat. Read our tips on flying after surgery.
Seek urgent medical care if you have pain or swelling in a calf, sudden breathlessness or chest pain, a fast heart rate, fever, worsening abdominal pain or vomiting that does not stop. Take your operation report with you, because doctors at home need to know which type of bypass you had.
Risks of gastric bypass: what the data show
Gastric bypass is a safe operation in experienced hands, and for people with severe obesity the health risks of staying at the same weight are usually higher than the risks of surgery. Searches for "gastric bypass Turkey death rate" reflect real concern after reports of patients who had complications after surgery abroad. There is no reliable published death rate for Turkey as a whole. International registry data, quoted by the American Society for Metabolic and Bariatric Surgery (ASMBS), put the risk of death within 30 days of a laparoscopic gastric bypass at roughly 1–3 in 1,000 — similar to a gallbladder or hip operation — and the risk rises with very high BMI, heart and lung disease and age. The main risks are:
- Leak at a join: about 1 in 100 patients; it usually shows in the first days with fever, a fast pulse or pain, and needs urgent treatment. This is why you stay near the hospital for the first week.
- Bleeding and blood clots: uncommon, each roughly 1–2 in 100; clots are prevented with injections, stockings and early walking.
- Marginal ulcer: an ulcer at the join between the pouch and the intestine, reported in roughly 1–16 in 100 patients depending on the study, much more often in smokers and people taking anti-inflammatory painkillers such as ibuprofen.
- Internal hernia and bowel obstruction: the intestine can twist through gaps created by the bypass, sometimes years later, especially after large weight loss. Sudden, severe abdominal pain after a bypass needs emergency assessment.
- Nutritional deficiencies: iron, vitamin B12, folate, calcium and vitamin D deficiencies are common without lifelong supplements; anaemia and weak bones can follow.
- Gallstones: rapid weight loss makes gallstones more likely; some surgeons prescribe a medicine (ursodeoxycholic acid) for the first six months.
- Other: dumping syndrome, low blood sugar after meals, narrowing of the join, bile reflux after a mini bypass, and weight regain.
Gastric bypass revision surgery
Revision surgery is needed when weight is regained, the pouch or join has widened, or a complication such as bile reflux or a chronic ulcer develops. Options include tightening the pouch or join from the inside with an endoscope, lengthening the bypass or converting a mini bypass to a Roux-en-Y bypass. Many patients searching for gastric bypass revision surgery have had a sleeve or a band before: converting a sleeve to a bypass is a common solution for severe reflux or regain after a sleeve. Revision is more complex and carries higher risks, so it belongs with a surgeon who does it regularly.
You lower the risks by choosing an experienced bariatric team in a hospital with intensive care, stopping smoking, losing a little weight on the pre-operative diet, staying the full time in Turkey, avoiding anti-inflammatory painkillers and taking your supplements.
How to choose a bariatric surgeon and hospital in Turkey
Gastric bypass is a team operation. Before you book, check:
- The surgeon's name and experience: ask who will operate and how many bypass operations they perform each year. Registration with the Turkish Ministry of Health and membership of the Turkish Society for Metabolic and Bariatric Surgery or IFSO are good signs.
- A hospital, not a day clinic: the operation should take place in a licensed hospital with an intensive-care unit, an anaesthesiologist present throughout and access to an endoscopy team and interventional radiology if a complication occurs. The hospitals on our site hold Ministry of Health licences and several are JCI-accredited.
- A real assessment: a good team asks for your full medical history, may refuse or postpone surgery, explains why it recommends a bypass rather than a sleeve or the reverse, and includes a dietitian and, ideally, a psychologist.
- Follow-up after you fly home: ask who answers your messages, how the dietitian follow-up works, which blood tests you need, and what happens if a complication appears after you return.
Red flags: surgery offered without any health questions, a package with only one or two nights in total, pressure to pay a deposit quickly, no surgeon's name, and promises of a guaranteed weight. Our guide on choosing a safe surgeon in Turkey has a checklist, and you can compare hospitals and surgeons on our site.
Gastric bypass results: what to expect
Most patients lose about 60–75% of their excess weight — roughly 25–35% of their starting body weight — within 12–18 months. Long-term studies such as the Swedish Obese Subjects (SOS) study show that most of this weight loss is kept for ten years and more, although some weight is usually regained after the first two years. High blood pressure, sleep apnoea, joint pain and fertility often improve, and type 2 diabetes goes into remission in many patients.
The result depends on how you eat afterwards: protein first, small portions, little sugar, regular activity and your supplements. Patients who keep in contact with their dietitian and attend blood tests keep the most weight off. Gastric bypass surgery in Turkey on our site is planned around that: the price, the hospital, the surgeon and the follow-up are agreed in writing before you travel.
Gastric Bypass in Turkey reviews
Reviews of the hospitals and surgeons on this page that perform Gastric Bypass, with reviews about this treatment first. Reviews from Google are marked.
I was a patient there a week ago for gastric sleeve surgery. I received excellent treatment from my interpreter, who accompanied me throughout the entire process before the surgery, and the nutritionist was also very kind and attentive to my needs. Overall, my stay there was pleasant. I should mention that some of the nurses lack experience; it's noticeable when a more knowledgeable nurse is attending to you. One nurse accidentally injected me twice in the arm, and another nurse had to come and correct it. I also have a minor complaint about the "therapist" who, in my opinion, should be more careful, as he asked me inappropriate questions and judged me for being part of the LGBT community, which I don't think is the attitude a therapist should have. Aside from that, everything was excellent. The building looks very technologically advanced and is always very clean. I'm gradually progressing with my recovery and staying in touch with the nutritionist who continues to support me throughout this process. I definitely recommend it!
I would like to share my personal experience accompanying a patient who underwent gastric sleeve surgery. We traveled from Spain, and I must acknowledge the excellent service we received. It exceeded our expectations, and the level of professionalism demonstrated was evident. From the moment we arrived, we were picked up at the airport and taken to the "LOKMAN HEKIM" hospital, where they immediately began a series of preliminary tests. The staff is outstanding, and we are very grateful, from the medical staff to the support staff. I must highlight the hygiene, kindness, and personal attention they always offered. Our deepest gratitude goes to Linda (sales representative) and Alex (translator), who made us feel right at home, as well as to Professor Dr. Hüseyin Sinan, who performed the successful procedure, allowing my wife to recover in record time. In short, I highly recommend the service and urge the medical team to maintain this high standard. Thank you very much!
TALOFA; ALOHA; MALŌ E LELEI; BULA; KIA ORA I had initially planned to be support person for my BFF for an appointment she had long wanted to get done. As good friends do - I too did research to ensure she was on her healthiest path. I asked the Patient Consultant questions only a sceptic would. Linda was most approachable - she even set up a group chat for her; the patient and the patient's friend who simply had to know everything!!! Obviously on more personal/medical related matters - she'd communicate direct with my BFF. Linda was VERY informative; no question was too strange or silly and I NEVER felt I was being pressured to respond [though it helped that I kept her in the loop AND I was up front that I was researching other options/providers]. Now ANYONE who knows me - knows it takes A LOT to impress me!!! On this rare occasion - just from what is learnt and Linda's impeccable customer service - I too decided to book in for the gastric sleeve procedure! From airport pickup; admission; settling into our rooms; pre op tests [yes, covered a lot of klms going to/from specialists]; the actual operation; to post op care, our Patient Consultant 'Linda BURCU GUNSEL'; Interpreter 'Alessandra MADUREIRA' and Hospital Consultant 'Serap CELIK' were with us the WHOLE TIME!!! I also learnt; if on your initial enquiry you LOVE what the facilities offer - but you are not 'clicking with your consultant - they strongly encourage you request another - they truely don't mind! Long story short Would I recommend Lokman Hekim Hospital, Professor Huseyin SINAN M.D., his Consultancy and Medical Teams to everyone I know and anyone who cares to read this? ABSOLUTELY!!! Job WELL DONE ✅ ✅ ✅
Last week, Professor Hüseyin Sinan MD, along with his medical team, performed gastric sleeve surgery on me, from which I am recovering well. I am grateful to the entire medical team, Linda (sales), Belgin (nutritionist), Alessandra …
Today, my brother and I came to Lokman Hekim Hospital for a routine check-up. We come every year. But this year, we would like to thank Ms. Selda for welcoming and caring for us. She listened patiently, explaining everything step by step. I would like to thank her here as well and wish her continued success. Seeing such a caring person in such an institution truly made us happy.
It's a terrible place. I used many of its departments, even had surgery there, but I'll never go near it again. When you call about the results, they even hang up on you.
Gastric Bypass: guides and articles
Gastric Sleeve vs Gastric Bypass: Which Is Right for You?
A sleeve or a bypass? What ten-year trials show about weight loss, reflux and diabetes, how the risks differ, and the questions that usually decide the choice.
Read moreFrequently asked questions
At the accredited hospital on our site a gastric bypass costs from about €4,400 for international patients (shown in your currency on this page). Across the Turkish market packages usually cost about €3,500–€6,500; robotic and revision surgery cost more. Your exact price is written on your quote after the surgeon has reviewed your health details.
Usually the surgeon and anaesthesiologist, pre-operative tests and often a gastroscopy, the operation, three to four nights in hospital, the leak test, medication including blood-thinning injections, a dietitian session, an interpreter and transfers, and often hotel nights. Flights, extra nights and lifelong supplements are usually not included — ask for the list in writing.
A private gastric bypass in the UK usually costs about £10,000–£15,000, more in London. The NHS funds bariatric surgery for eligible patients, but usually only after a specialist weight-management programme and often after a long wait.
Usually a BMI of 40 or more, or 35 or more with a weight-related condition such as type 2 diabetes, high blood pressure or sleep apnoea. With type 2 diabetes that is poorly controlled, surgery may be considered from a BMI of 30, and lower thresholds apply to people of Asian family background.
There is no reliable published figure for Turkey as a whole. International registry data quoted by the ASMBS put the risk of death within 30 days of a laparoscopic gastric bypass at about 1–3 in 1,000, rising with very high BMI, heart or lung disease and age. Choosing an experienced team in a hospital with intensive care and staying the full time lowers the risk.
It is as safe as the surgeon, hospital and follow-up you choose. Choose a bariatric surgeon who performs bypass surgery regularly, a licensed hospital with an intensive-care unit, a team with a dietitian, and stay five to seven days so a leak or bleeding is recognised before you fly.
A Roux-en-Y bypass has two joins and a small round pouch; a mini gastric bypass has a longer, narrow pouch and one join. The mini bypass is quicker to perform and loses a similar amount of weight, but bile reflux and vitamin deficiencies are somewhat more common, so it is usually not the first choice for patients with reflux.
Neither is better for everyone. A bypass usually gives slightly more weight loss and is better for reflux and type 2 diabetes; a sleeve is simpler, keeps the intestine unchanged and causes fewer vitamin deficiencies, but can worsen reflux. Your surgeon recommends one after reviewing your health.
Plan five to seven days: a day of tests, surgery, three to four nights in hospital and a final check before your flight.
Most patients lose about 60–75% of their excess weight, roughly 25–35% of their starting weight, within 12–18 months. Long-term studies show most of it is kept for ten years or more, though some weight is usually regained after the first two years.
Liquids for about two weeks, then purées for two weeks, soft food for another two weeks and normal textures from about week seven, in small, protein-first meals. Sugary and fatty foods can cause dumping syndrome, and drinks should be taken between meals rather than with them.
Yes. A multivitamin with minerals, calcium with vitamin D, iron and vitamin B12 are usually needed for life, with blood tests at three, six and twelve months and then every year. Deficiencies can cause anaemia, nerve damage and weak bones.
Usually five to seven days after surgery, once the leak test, wounds and blood tests are normal. Wear compression stockings, walk every hour, drink in small sips and continue the blood-thinning injections you are given.
Keyhole surgery means most patients have moderate pain for a few days, controlled with painkillers; shoulder pain from the gas used during surgery is common for a day or two. Most people return to desk work after two to three weeks.
It often puts type 2 diabetes into remission, especially when diabetes is recent and insulin is not yet needed. In the STAMPEDE trial about three in ten bypass patients had near-normal blood sugar without medicines after five years. Blood sugar should still be checked regularly.
Yes, and fertility often improves with weight loss, but pregnancy should be avoided for 12–18 months after surgery while weight is falling quickly. The contraceptive pill may be absorbed less reliably after a bypass, so discuss contraception with your doctor.
A second operation to treat weight regain, a widened pouch or join, bile reflux or a chronic ulcer — for example tightening the join, lengthening the bypass or converting a mini bypass to a Roux-en-Y bypass. Converting a sleeve to a bypass is also common for reflux or regain. Revision carries higher risks and belongs with an experienced team.
Many patients do after losing a lot of weight. Skin removal such as a tummy tuck, arm lift or body lift is usually planned 12–18 months after surgery, once the weight has been stable for several months.