Bariatric Surgery (Weight Loss Surgery)

What is Bariatric Surgery?

Bariatric Surgery, commonly known as weight loss surgery, is a range of surgeries that involve alterations to the digestive system in the form of potentially making the stomach smaller and bypassing a portion of the intestines to induce weight loss. Bariatric Surgeries are also effective at treating sleep apnea, arthritis, diabetes, high blood pressure and high cholesterol.

Bariatric Surgeries are the most effective treatments of obesity and are recommended to people with a BMI above 30 by International Federation for the Surgery of Obesity (IFSO) and American Society of Metabolic and Bariatric Surgery (ASMBS). Bariatric Surgeries are the perfect weight loss methods for people who have been unsuccessful with diet and exercise.

All Bariatric Surgeries performed by Booking Surgery are done laparoscopically, which involves making small keyholes instead of large incisions. Laparoscopic surgeries are minimally invasive and usually result in no permanent surgery scars.

Booking Surgery, with Turkey’s health infrastructure, can provide the highest standard of care for a low cost. Bariatric Surgery cost varies according to the procedure and patient health history, contact us for an exact quote.

What are The Different Types of Bariatric Surgery?

Gastric Sleeve Surgery

Gastric Sleeve Surgery, synonymous with Sleeve Gastrectomy and Sleeve Bariatric Surgery, works by reducing the size of the stomach. Around 80% of the stomach is removed, and a tubular sleeve is created.

The removed portion of the stomach is responsible for creating the majority of the Ghrelin hormone. Ghrelin, also dubbed “The Hunger Hormone” by researchers and doctors because of its significant effect on appetite. Removal of the portion of the stomach reduces the production of Ghrelin, which reduces hunger felt by patients.

Gastric Sleeve Surgery is the safest surgical Bariatric Surgery. On average 60% of the excess body weight is lost within the first year post surgery.

Roux En Y Gastric Bypass Surgery

Roux En Y Gastric Bypass, also simply called Gastric Bypass, is a type of weight loss surgery that involves creating a small pouch from the stomach and connecting the newly created pouch directly to the intestines. The modified digestive system will make swallowed food go into the newly created small pouch and then directly into the intestines, thereby bypassing most of the stomach and 150 - 200 (4.92 - 6.56 feet) cm of the bowels.

Gastric Bypass is one of the most common types of Bariatric Surgery in the world. On average 80% of the excess body weight is lost within the first year post surgery.

Lifelong usage of Bariatric vitamins is required after Gastric Bypass and since Gastric Sleeve can be revised into bariatric surgery, Gastric Bypass is seen as the more effective last resort compared to Gastric Sleeve.

Mini Gastric Bypass Surgery

Mini Gastric Bypass, also called single anastomosis Gastric Bypass, combines aspects of Gastric Sleeve and Roux En Y Gastric Bypass. Mini Gastric Bypass is a simpler surgery than Roux En Y Gastric Bypass, which is the two anastomosis Bypass.

Top of the stomach is stapled to form a thin tube and is then sewn to a loop of the intestines, bypassing the duodenum and approximately 200 – 250 cm (6.56 - 8.20feet) of the bowels.

Mini Gastric Bypass is just as effective as a regular bypass, but will worsen acid reflux that is caused by a hiatal hernia. Mini Gastric Bypass is recommended for patients who previously had a Gastric Sleeve or Gastric Band but were unsuccessful with weight loss. Mini Gastric Bypass provides remarkable and sustainable weight loss.

Gastric Balloon Surgery

Gastric Balloon Surgery is a non-surgical Bariatric treatment, where a medical grade, saline-filled, Gastric Balloon is inserted into the stomach cavity and decreases appetite by occupying approximately a third of the stomach volume. The Gastric Balloon causes the digestion to slow down, prolonging the full feeling. Gastric Balloon insertion is an outpatient procedure that takes about 20 minutes and is performed under general anesthesia. No incisions are made and no hospitalization is required.

Feeling uncomfortable and nauseous for the first few days following gastric balloon is to be expected. Medication that counters these side effects will be provided post surgery.

There are 3 kinds of Gastric Balloons: 6 month, 12 month and swallowable.

6 and 12 month balloons have to be removed by a medical professional near the end of their lifespan, while the swallowable balloon is removed naturally without any outside medical help.

On average 40% of the excess body weight is lost with the 6 month Gastric Balloon. Gastric Balloon is a non-surgical Bariatric treatment and is no substitute for surgical Bariatric treatments.

Revisional Bariatric Surgery

Revisional Bariatric Surgery is performed to repair or change a previous weight loss surgery. This surgery is appropriate for patients who:

Had less-than-optimal weight loss

  • Experienced weight regain
  • Had complications from their initial Bariatric Surgery.

Any kind of bariatric surgery can be revised, including less effective surgeries that we do not offer like the gastric band, but it must be revised into a Bariatric Surgery we offer.

What Are The Risks of Bariatric Surgery?

Even though the laparoscopic Bariatric Surgery is safer than Gallbladder removal, like any major surgery, it does come with certain risks. There are risks that are associated with the operation itself and risks that are associated with the result of the altered digestive system.

Surgery Related Complications:

  • Bleeding
  • Blood Clots
  • Infections
  • Hernias
  • Anastomotic or Staple Line Leaks
  • Anesthesia Related Risks
  • Perforation of Stomach or Intestines
  • Pouch or Anastomotic Obstruction
  • Obstruction of Stomach or Bowel
  • Death

Altered Digestive System Related Complications:

  • Internal Herniation
  • Leakage
  • Protein or Calorie Malnutrition
  • Vitamin or Iron Deficiency
  • Gallstones
  • Dumping Syndrome
  • Reflux

How do I Choose The Best Bariatric Surgery Procedure?

While our patients are recommended to familiarize themselves with every Bariatric Surgery, our Bariatric team of surgeons will evaluate their medical history to determine which

Bariatric Surgeries they qualify for and make a recommendation specific to the patient. The details of eligible surgeries will be explained in greater detail, including Bariatric Surgery cost, by the Patient Coordinator.

Bariatric Surgery requirements include a Body Mass Index (BMI) of at least 28.

Here are some of the Bariatric Surgery criteria that our surgeons use:

  • For a BMI between 28 and 30, gastric balloon procedure is recommended.

average 10 kilograms (22 lbs) when combined with exercise.

  • If heartburn is present and caused by a hiatal hernia, then Gastric Sleeve or Mini Gastric Bypass will exacerbate the condition, so a Roux En Y Gastric Bypass Surgery will be recommended.

What can I expect before, during, and after bariatric surgery?


After completing your booking, your Patient Coordinator will provide you a treatment schedule, which is an itinerary of your trip, and a liver reduction diet. You should follow your diet until the surgery date and check your treatment schedule for details of your trip.

Generally, you will arrive at the hospital a day before your surgery and have your pre-op tests. These tests include ECG, ultrasound, blood tests, respiratory tests, Covid PCR, but might be changed according to our patients’ health condition.

Consultations by an Anesthesiologist, an Internal Medicine specialist, and a dietician are part of the pre-op examination, additional consultations might be needed depending on the patient.


Bariatric Surgery will take 20 minutes to an hour depending on the surgery type. There is a possibility that after the surgery begins, the surgeon will need to change the Bariatric Surgery type. This can happen for a variety of reasons. Also, our surgeons may perform a hernia repair as it is necessary to continue with the Bariatric Surgery.


Our Bariatric nurses will do period checks every 15 minutes for the first 8 hours. Followed by checks every hour for the first day post surgery. Each will include blood draws for continuous testing, and expect IV fluids to be given for hydration as well. Walking 4 hours post operation will be encouraged and will lower potential gas pain. Liquid consumption will begin 2 days post operation and our dietitian will give a training about post-op Bariiatric nutrition.

You can expect to start losing a noticeable amount of weight within the first month post operation.

What Should Be Done After Bariatric Surgery?

After getting home:

First 3 weeks following surgery, a liquid only diet is advised to the patient. Followed by a 3 week puree stage, where both liquids and puree foods are fine to consume. Then, by a slow transition into solid food.

Booking Surgery’s dietitian team will help patients with their nutrition during and after the 7 week special diet process.

Compression socks need to be regularly worn to prevent Deep Vein thrombosis and stomach protectors and blood thinners must be used as prescribed to lower the risk of blood clots and prevent erosion of the stomach.

Special Bariatric vitamins, collagens and biotin are also recommended as they will lower hair loss and other side effects of Bariatric Surgeries.

Consuming at least 60g of protein per day is important to prevent malnutrition, we recommend protein shakes to reach this number in the liquid and puree stages. Consumption of sugar, alcohol, and carbonated or caffeinated drinks is not recommended for the first 6 months after Bariatric Surgery.

Heavy sports and swimming are not recommended for a month following Bariatric Surgery, but frequently walks are recommended a week after surgery.

Check the booklet given after your Bariatric Surgery and contact our dietitian for more nutrition information.

What are The Bariatric Surgery Advantages and Disadvantages?


  • Patients who undergo a Bariatric Surgery have an improvement of obesity-related conditions including: high blood pressure, high cholesterol, diabetes, sleep apnea, and arthritis.
  • Bariatric Surgeries can result in an improvement of cardiovascular health, joint pain, and reduced depression as a self-esteem. Unlike yo-yo diets, Bariatric Surgeries are the most successful methods of long-term weight loss.
  • Having Bariatric Surgery also balances the menstrual cycle and can lead to increased fertility in women.


  • While the reduction in nutrient absorption triggered by Bariatric Surgery allows for weight loss, it can also cause malnutrition, hair-loss, low blood sugar, and vomiting.
  • Depending on the procedure hernias, ulcers, and acid reflux are also possible.
  • Like any major operation, Bariatric Surgery has multiple risks, check the Risks of Bariatric Surgery section for more details.

Results of Bariatric Surgery

Weight goals can be reached with minimal effort in nutrition and exercise after Bariatric Surgery. Visual appearance of weight will be visibly different, on average, by the end of the first month post operation. Most patients, approximately, reach their goal weights in 9 to 12 months. Please check out the Before After photos in our gallery.


Weight Loss Surgery Cost

We aim to simplify your journey by providing a transparent, all-inclusive price for your weight loss treatment. This comprehensive fee covers the following:

  • Full Hospital Stay
  • Surgical Procedure
  • Follow-up Appointments
  • Ongoing Support from Your Clinical Team

Our commitment to you is that the agreed-upon price remains fixed, regardless of any unforeseen circumstances that may extend your hospital stay. This ensures you can focus entirely on your recovery, weight loss goals, and embracing your transformed life.

Given the unique needs of each patient, an accurate cost estimate for your treatment can be obtained through a consultation with one of our specialists. We understand the importance of tailoring the approach to suit your individual requirements


Bariatric surgery, often considered a life-changing decision, involves various procedures aimed at promoting significant weight loss for individuals struggling with obesity. Before undergoing bariatric surgery, patients often grapple with health challenges, reduced mobility, and a diminished quality of life. The decision to pursue this transformative journey is typically preceded by careful consideration, medical consultations, and a commitment to long-term lifestyle changes.

After bariatric surgery, patients commonly experience remarkable transformations in their health and well-being. The before-and-after pictures tell a powerful story of not just physical changes but also improved mental and emotional well-being. Beyond weight loss, many individuals observe positive effects on obesity-related conditions such as diabetes, hypertension, and sleep apnea.

The post-surgery period requires diligent adherence to dietary guidelines, regular exercise, and ongoing support from healthcare professionals. Follow-up appointments and adjustments to lifestyle play a crucial role in maximizing the long-term benefits of bariatric surgery. The journey is a testament to the resilience of individuals seeking a healthier, more fulfilling life after overcoming the challenges of obesity.

What is Body Mass Index (BMI)?

Body mass index (BMI) or height-weight index is a calculation method that shows the estimated fat content of a person's body. This method is based on the person's height to weight ratio. According to the result of the index, the proximity and distance of the person's current weight to his/her ideal weight can be calculated

How is Body Mass Index Calculated?

Body mass index is calculated by dividing the body weight by the square of the height (kg/m⊃2;).

Results below 18.5 kg/m⊃2;: Below ideal weight

Results between 18.5 kg/m⊃2; and 24.9 kg/m⊃2;: Ideal weight

Results between 25 kg/m⊃2; and 29, 9 kg/m⊃2;: Above ideal weight

Results between 30 kg/m⊃2; and 39, 9 kg/m⊃2;: Above ideal weight (obese)

Results above 40 kg/m⊃2;: Above ideal weight (morbidly obese)


What Do Body Mass Index Results Mean?

Body mass index calculation does not include factors such as fat ratio, body type, fat and muscle tissue. For this reason, experts obtain more detailed information about the person's weight problem by measuring the metabolic rate and detailed body analysis, in addition to measuring the body mass index and waist circumference in calculating the ideal weight. The fact that the person is above or below the ideal weight should be evaluated by the physician together with other factors. Action should be taken together with the physician to eliminate existing health problems and prevent possible health problems.

In men, if the waist circumference exceeds 94 cm, it is considered an increased risk, and if it exceeds 102 cm, it is considered high risk. In women, this ratio is considered increased risk if it exceeds 80 cm and high risk if it exceeds 88 cm.

Obesity Calculation with Detailed Body Mass Index

In calculating obesity with detailed body mass index, it can be learned whether the weight, body fat percentage and waist circumference are within normal values, taking into account age and gender.

First of all, it is very important for the diagnosis and treatment of obesity to know where the fat tissue accumulates in the body. The way fat tissue accumulates in the body can be divided into two as apple type and pear type.

In apple type obesity, fat accumulates around the belly. In pear type obesity, it is observed to accumulate in the hips and thighs. However, the fat accumulated around the navel is considered to be more dangerous and has a higher risk of heart disease than the fat accumulated in the hips and thighs.


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Priscille Vuanda reviewed Vous n'avez pas à avoir peur y a toujours une personne qui parle votre langue et qui peut répond à tout vos questions

Honnêtement au début j'avais peur, mais javais Pierre qui de le début communiqué déjà avec moi via WhatsApp à tout moment il était disponible 7/7, 24/24. A mon arrivé à Istanbul on avait un chauffeur privé très sympathique qui est venu nous chercher à l'aéroport poir nous déposer à l'hôpital. Arrivé à l'hôpital j'ai été accueilli par Des infirmière très très gentil dont Ellie et des interprète et accompagnateur trooooooop sympathique dont Oscar et Stella. Je tien vraiment à remercier ses personnes la parce sans eux l'expérience serait peut être différent. Pierre avait déjà réussi à me mettre en confiance depuis que jetait encore à Bruxelles. Après ma chirurgie ils ont était au petit soin avec moi🥹. Et même à mon retour en Belgique j'ai Pierre qui continue à prendre de mes nouvelles et il sera présent tout au long. Un grand merci à Pierre,Oscar,Stella et Ellie. Vous allez beaucoup me manquer

Mags reviewed Excellent service with

I used for procedures at medistanbul with Dr Yalcin. From getting in contact to having the procedures the care has been second to none. The coordinators and interpreters have made everything seamless, many thanks to Lily, Morgan and Frank for all your help. The nursing staff are always at the end of the buzzer and the cleaners are popping in regularly with a smile and a mop. The food not so amazing but I didn’t come here for a gourmet experience! Would have no hesitation in returning or recommending this company.

Jordan Moore reviewed highly recommended my experience was…

highly recommended my experience was brillant from start to finish will definitely be using these guys again once I get down to my weight to sort my lose skin out

Miss K Elizabeth reviewed I had a boob augmentation (implant…

I had a boob augmentation (implant under the muscle) this week at medistanbul with booking surgery and I arranged the booking with David a co-ordinater who was nothing short of brilliant and even came to see me post surgery to make sure things were all okay. Dr Yalcin did my surgery, post surgery care and took out my drains and was a lovely bloke who achieved everything I asked for and more. Lily - my interpreter helped me the whole time and even got me English tea and coffee into the hospital, she helped me with my payments and general healthcare. All of the nurses were so caring, considerate and made me feel comfortable. On my leaving day, I felt reassured and ready to leave. I will definitely be returning for more surgery in the future :)

Danielle selwood reviewed Incredible service 5☆ all the way!

FDL 360 & BREAST UPLIFT n IMPLANTS Op date 3rd June 2024 Under Dr Yalçin At Medistanbul Hospital Omg I honestly have so much to say! What a fantastic service from the moment I contacted them nearly a year ago. My coordinator was Deniz and nothing was to much. I was given all the information about surgeons, pictures of there plastic surgery work and the decision was mine. I chose Dr Yalçin🩺 Upon arrival in Istanbul Sunday 2nd June I was picked up and it all began. Loads of staff a lot of different faces and always an translators at all times. I meet Dr Yalçin Monday 8am he done his drawings in me and I went down about 8.30am. Pain was manageable, nurses would come when you buzzed. Dr visited very day to check on all my wounds. Honestly just so incredibly grateful to Dr Yalçin and his team, 20yrs I waited and you made all my dreams come true in 1 day. Plus he has the loveliest smile you will see in your day. I had a few peeks and the wounds and stitching look phenomenal. If only Dr Yalçin new how much is amazing work literally changes people's lives. Thank you so much ;-) Big shout out to Lily and the whole translators and Booking Surgery Team. Would 💯 recommend to anyone asking and i know where to come if I'm ever looking for something else in future (Maybe thigh n arms we will see)! Though my husband did say next time we come to Turkey 🇹🇷 it's for a holiday😜 Take Care All Danielle Selwood

Maz reviewed Mike Smith my coordinator was…

Mike Smith my coordinator was amazing.. he was in contact throughout and even checked up on me once I was home. I would highly recommend this service and it’s definitely worth the travel l.

Jo Davis reviewed Breast uplift with implant…

I had a breast uplift with implant through BookingSurgery.Com on 3rd June 2024, and my partner had dental work done by them too whilst we were there. My partner and I used this company through personal recommendation from someone he knew who had used them for weight loss surgery and then for plastics/reconstructive surgery after. After hearing "horror stories" about surgeries abroad, it was important to get it right. I initially contacted BookingSurgery.Com through their website and a coordinator named Robert Campbell followed up my enquiry through WhatsApp message. After discussion about breast augmentation, Robert consulted with the surgery team and came back to me with a recommendations and quote from two surgeons. The recommendation was breast uplift with implant. I was very happy that the quote included transfers from airport to hospital, the surgery and medications, three meals a day for myself and a companion and their overnight stay too. To secure the price I only had to pay a £100 deposit and the outstanding balance didn't need to be paid until my surgery date. Robert asked me when I'd like to come for my surgery, I gave him an ideal date and he secured it. Robert was a brilliant coordinator, very polite and responded to my queries in good time, liaised with the surgeon and informed me accordingly at all times. When it came to the time for us to come to Turkey, the person who met us off the plane (Gurçan) was very friendly, helpful and a good driver. The cab had WiFi we could connect to which was great. (We also had the same driver who took us back to the airport for our return flight.) We arrived at the hospital and were met by a very happy, welcoming friendly translator called Stella who showed us to our room and explained what would happen next (as you have your pre-op on the day of arrival.) The consent form was very transparent on the surgery I was receiving, what to expect and any risks associated with the procedure which meant I could make an informed choice. The hospital we were at was called Yasam and the rooms, corridors etc were very clean and nice. The nurses were friendly and the care received was of a high quality. The cleaners were friendly and polite too. We had our own bathroom and smart tv and were comfortable. My partner's coordinator, Nora, arranged affordable transfers using the BookingSurgery.Com drivers to take him to the dental hospital in the city where he had his prep work and crowns fitted. The following day was surgery day and I met with my surgeon (Dr Nebil) and the anaesthetist. Dr Nebil really listened to what I was hoping to achieve and very informative. Before going down for surgery, the nurse gave me a sedative as general procedure. I was very happy with the results of my surgery and glad that I followed Dr Nebil's advice of implant with the uplift. His work is amazing! The nurses looked after me very well and the Dr visits you every single day to check on your progress and to answer any questions. There's always a translator on site which makes communication no issue. Pain relief and medications are all included in the care during hospital and when you go home. You receive an information pack to go home with which gives you very detailed advice on how to care for yourself following surgery including when you can resume normal activities such as driving, exercise, sunbathing etc. There are fit to fly letters, medication list with instructions on how to use, all tests taken prior to surgery, and after with the results, and a detailed write up on the surgery process, what was performed and how. I have photocopies of the boxes that my implants came in with serial numbers, details etc, and also contact info for a post op coordinator should there be any issues or if my recovery isn't as explained in the letter. This is very reassuring that BookingSurgery.Com are still looking after me once home. There were 4 translators in the hospital who were all helpful but I want to give a special mention to Stella and Oscar who I felt were more like friends. I met some lovely people on my ward who were all with BookingSurgery.Com for various procedures and having them to talk with definitely helped in terms of company and what to expect in regards of recovery etc. Before leaving Yasam hospital, I was very happy that I was able to have a photo taken with my Dr and translators, and am so happy that I chose to use BookingSurgery.Com

MRS VICTORIA CONNELL reviewed This is my 2nd time with…

This is my 2nd time with Bookingsurgery. Both bariatric and plastics. The nurses and surgeons and translators are amazing. The care they provide is so much better than the UK. You want for nothing, I’ve need help this time and they are with you in minutes. I wouldn’t hesitate to come back again. Dr Nabil, Nadia, Oscar and the whole team thank you for changing my life