Atakent, 4. Cd. No:36, 34307 Küçükçekmece/İstanbul
Bariatric & Metabolic Surgery in Istanbul

Gastric Sleeve Surgery in Turkey

Gastric sleeve surgery in Istanbul with Op. Dr. Gürdal Ören, personalised assessment and lifelong dietitian follow-up.

6,000+ Surgical Experience
13–20 min Surgery Time
SRC Master Surgeon
Lifetime Follow-up Support
Gastric Sleeve Surgery in Turkey

Cost, Safety, Weight Loss & Treatment in Istanbul

Explore the most important topics about gastric sleeve surgery in Turkey, including treatment in Istanbul, costs, safety, expected weight loss and long-term follow-up.

Gastric Sleeve in Turkey

Learn about the treatment process, hospital stay, aftercare and important information for international patients.

View treatment information

Gastric Sleeve Cost

Understand what a gastric sleeve treatment package may include and what to compare when reviewing costs in Turkey.

Cost & inclusions

Is Gastric Sleeve Safe?

Read about safety, possible risks and why individual medical assessment is important before surgery.

Safety information

How Much Weight Can You Lose?

Learn about typical weight-loss progress after gastric sleeve surgery and the factors that can influence individual results.

View weight-loss information

Are you suitable for gastric sleeve surgery?

Send us your age, height and weight for a free initial assessment based on your individual situation.

More Than 15 Years of Experience

Gastric Sleeve Surgery in Istanbul

Our bariatric team provides personalised assessment and surgical care for gastric sleeve surgery, revision bariatric surgery and selected metabolic surgery cases in Istanbul.

  • 6,000+ Gastric Sleeve Surgery Cases
  • Lifetime Dietitian Follow-up
  • Lifetime Post-Operative Follow-up Support
Bariatric Surgery

Our team

Gürdal Ören M.D.

Gürdal Ören M.D.

Speciality: Obesity and Metabolic Surgery Specialist
Education:

Ege University School of Medicine, 1991
Çukurova University Faculty of Medicine General Surgery U.S.A.

Contact:
Specialist Dietician Neslihan Ağbaba

Specialist Dietician Neslihan Ağbaba

Speciality: Bariatric Dietitian
Education:

İstanbul Arel University

Bariatric Care Specialist - Surgical Review Corp. Accredition

Contact:
Mert Ağbaba

Mert Ağbaba

Speciality: Coordinator
Education:

Okan University - Industrial Engineering

Contact:

Who Is Suitable for
Gastric Sleeve Surgery?

Who is suitable for gastric sleeve surgery?

Gastric sleeve surgery is a medical treatment for obesity and is considered after an individual assessment of BMI, medical history, previous weight-loss attempts and overall suitability for surgery.

  • Patients should be prepared to follow the post-operative nutrition plan and medical advice
  • Patients with a BMI of 30 or above may be considered depending on their individual medical assessment
  • Previous weight-loss attempts and long-term weight management history are reviewed during the assessment
  • Obesity-related conditions such as type 2 diabetes, high blood pressure or sleep apnoea may be relevant
Doctor consultation about gastric sleeve surgery

Frequently Asked Questions

Studies show that sleeve gastrectomy has a 99.7% survival rate. Complications are relatively rare and occur in less than 4% of patients. It is possible to treat all complications to be experienced in today's technology.

Our clinical research and experience show that the patient who works at a desk job after sleeve gastrectomy can start working within 1 week after leaving the hospital. If your job involves a lot of physical exertion and strenuous activities such as lifting, then your return to work may take longer than someone with a desk job.

You can start right away. However, we are not talking about very heavy exercises here, of course. You can start with the easy one first and gradually increase your pace. Walking around the house will be enough at first. You can set the time yourself by continuing with low-tempo exercises for the first month. After the second month, you can start exercising at a medium or heavy pace.

Pregnancy After Gastric Sleeve Surgery

Pregnancy is possible after gastric sleeve surgery, and many women go on to have healthy pregnancies after bariatric treatment. However, the timing of pregnancy is important because the body undergoes rapid weight loss and major nutritional changes during the first months after surgery.

For this reason, pregnancy planning should be discussed with both the bariatric team and an obstetrician.


How Long Should You Wait Before Pregnancy After Gastric Sleeve?

Pregnancy is generally best planned after the most rapid phase of weight loss has passed and body weight has become more stable.

For many patients, this means waiting approximately 12–18 months after gastric sleeve surgery before trying to conceive.

The exact timing should be individualised according to weight stability, nutritional status, age and overall health.

Planning Pregnancy After Gastric Sleeve Surgery?

Pregnancy timing should be individualised according to weight stability, nutritional status, age and overall health. If you have already had gastric sleeve surgery, tell us your surgery date and current situation.

Ask About Pregnancy Timing


Why Is Early Pregnancy After Gastric Sleeve Not Recommended?

The first year after gastric sleeve surgery is usually the period of fastest weight loss. During this time, calorie intake is reduced and vitamin or mineral deficiencies may develop.

Pregnancy during this phase can make it more difficult to meet the nutritional needs of both mother and baby.

Potential concerns may include:

  • Insufficient calorie intake
  • Protein deficiency
  • Iron deficiency
  • Vitamin B12 deficiency
  • Folate deficiency
  • Vitamin D deficiency

Can Gastric Sleeve Improve Fertility?

Weight loss after bariatric surgery may improve fertility in some women, particularly when obesity-related hormonal problems are present.

Conditions such as polycystic ovary syndrome (PCOS) may improve after significant weight loss, and menstrual cycles may become more regular.

This means that pregnancy can sometimes occur sooner than expected after surgery.


Why Is Contraception Important After Surgery?

Because fertility may improve after weight loss, reliable contraception is important during the early post-operative period if pregnancy is not yet recommended.

Patients should discuss the most appropriate contraception method with their gynaecologist or medical team.


What Should Be Checked Before Trying to Conceive?

Before pregnancy, nutritional status should be reviewed carefully.

Blood tests may include:

  • Full blood count
  • Iron and ferritin
  • Vitamin B12
  • Folate
  • Vitamin D
  • Calcium
  • Other nutrients when clinically indicated

Any identified deficiencies should ideally be corrected before conception.

Preparing for Pregnancy After Bariatric Surgery?

Nutritional status is especially important before conception. If you have recent blood-test results, our team can help you understand which areas may need to be discussed with your bariatric and obstetric teams.

Ask About Pre-Pregnancy Follow-Up


Do You Need Vitamins During Pregnancy After Gastric Sleeve?

Vitamin and mineral supplementation is particularly important during pregnancy after bariatric surgery.

The supplement plan should be individualised according to blood test results, nutritional intake and pregnancy requirements.

Patients should not rely only on standard over-the-counter supplements without medical guidance.


Is Protein Important During Pregnancy?

Yes. Protein remains important because it supports maternal health, fetal growth and maintenance of muscle mass.

Because meal sizes are smaller after gastric sleeve surgery, patients may need to pay particular attention to protein-rich foods throughout the day.

A dietitian with experience in bariatric nutrition can help plan adequate intake.


Can Morning Sickness Be More Difficult After Gastric Sleeve?

Nausea and vomiting can occur during pregnancy in any woman, but persistent vomiting may be especially problematic after gastric sleeve surgery because the stomach is smaller and dehydration can develop more quickly.

Patients who cannot maintain adequate fluid or food intake should seek medical advice promptly.


How Much Weight Should You Gain During Pregnancy?

Pregnancy weight-gain targets should be individualised according to pre-pregnancy BMI, current weight and nutritional status.

The goal is not to continue active weight loss during pregnancy, but to support appropriate maternal and fetal nutrition.

Weight should be monitored by the obstetric and bariatric teams.


Can Pregnancy Cause Weight Regain After Gastric Sleeve?

Some weight gain during pregnancy is expected and physiologically normal.

After delivery, body weight may gradually decrease again, but long-term outcomes depend on eating habits, physical activity, breastfeeding, sleep and other individual factors.

Pregnancy-related weight gain should not automatically be considered bariatric surgery failure.


Does Gastric Sleeve Affect the Baby?

Most pregnancies after bariatric surgery can progress normally when nutrition and medical follow-up are appropriate.

However, maternal nutritional deficiencies can affect fetal growth, which is why regular obstetric care and blood tests are important.

Some patients may require additional fetal growth monitoring during pregnancy.


Is Pregnancy After Gastric Sleeve Considered High Risk?

Not every pregnancy after gastric sleeve surgery is classified in the same way, but previous bariatric surgery is relevant medical history and should always be reported to the obstetric team.

Closer nutritional monitoring may be recommended because food intake and vitamin requirements differ from those of patients who have not had bariatric surgery.


Can You Have a Normal Delivery After Gastric Sleeve?

Gastric sleeve surgery by itself does not determine whether delivery must be vaginal or by caesarean section.

The method of delivery is decided according to obstetric factors affecting the mother and baby.


Can You Breastfeed After Gastric Sleeve Surgery?

Many women can breastfeed after gastric sleeve surgery.

During breastfeeding, calorie, fluid, protein and micronutrient requirements increase, so continued nutritional monitoring is important.

Vitamin and mineral deficiencies should be corrected if identified.


What If You Become Pregnant Earlier Than Planned?

Becoming pregnant earlier than recommended does not automatically mean that complications will occur.

However, the bariatric and obstetric teams should be informed promptly so that nutritional status, weight loss and pregnancy development can be monitored more closely.

Early blood tests and dietitian assessment may be particularly useful.

Pregnant Earlier Than Expected After Gastric Sleeve?

An earlier pregnancy does not automatically mean that a complication will occur, but closer obstetric and bariatric follow-up may be important. Please contact your obstetric team promptly and keep your bariatric team informed.

Ask About Bariatric Follow-Up During Pregnancy


Why Is Multidisciplinary Follow-Up Important?

Pregnancy after gastric sleeve surgery is best managed with communication between the obstetric team, bariatric team and dietitian.

Follow-up may include:

  • Weight monitoring
  • Blood tests
  • Vitamin and mineral supplementation
  • Protein and calorie assessment
  • Hydration monitoring
  • Fetal growth monitoring when indicated

Planning Pregnancy After Gastric Sleeve Surgery

If you are considering pregnancy after gastric sleeve surgery, discuss your plans with your healthcare team before trying to conceive.

Waiting until weight has stabilised, correcting nutritional deficiencies and establishing a balanced eating pattern can help prepare the body for pregnancy.

Need Long-Term Support After Gastric Sleeve?

Pregnancy planning is one part of long-term bariatric care. Nutrition, vitamin and mineral monitoring, weight changes and dietitian follow-up remain important before, during and after pregnancy.

Ask About Long-Term Follow-Up


Learn More About Life After Gastric Sleeve Surgery

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