
Gastric Sleeve & Gastric Bypass Surgery in Istanbul | Eva Clinic
Weight Loss Surgery in Istanbul
Safe & Affordable Bariatric Surgery: Gastric Sleeve and Gastric Bypass in Turkey
Transform Your Life with Stomach Surgery in Turkey
Eva Clinic Istanbul specializes in bariatric procedures like gastric sleeve and gastric bypass surgery to help patients struggling with obesity achieve long-term weight loss, better health, and improved confidence — all at competitive prices in Turkey.
What is Gastric Sleeve Surgery?
Gastric sleeve surgery, also known as sleeve gastrectomy, involves removing about 75-80% of the stomach, leaving behind a banana-shaped “sleeve.” This smaller stomach limits food intake and reduces hunger hormones, helping you lose weight naturally and safely.
- Procedure Time: 45–60 minutes (laparoscopic)
- Hospital Stay: 2–3 days
- Expected Weight Loss: 60–70% of excess weight in 12–18 months
- Reversible? No
What is Gastric Bypass Surgery?
Gastric bypass surgery, also called Roux-en-Y gastric bypass, involves creating a small pouch at the top of the stomach and rerouting part of the small intestine. This not only reduces how much you can eat but also how many calories your body absorbs.
- Procedure Time: 90–120 minutes (laparoscopic)
- Hospital Stay: 3–4 days
- Expected Weight Loss: 70–80% of excess weight in 12–18 months
- Reversible? Technically yes, but rarely done

Gastric Sleeve vs. Gastric Bypass – Which is Right for You?
| Feature | Gastric Sleeve | Gastric Bypass |
|---|---|---|
| Weight Loss Rate | Moderate to High | High |
| Procedure Complexity | Simpler | More Complex |
| Absorption Change | No | Yes |
| Dumping Syndrome | Rare | Possible |
| Diabetes Control | Good | Excellent |
Benefits of Bariatric Surgery at Eva Clinic Istanbul
- Experienced bariatric surgeons with international certifications
- Minimally invasive (laparoscopic) procedures
- Multilingual medical team & 24/7 patient support
- All-inclusive packages (hospital stay, transfers, accommodation)
- Post-surgery nutritional and psychological support
Frequently Asked Questions
- Who qualifies for weight loss surgery?
- Generally, patients with a BMI over 35 (with health issues) or over 40 (without) are eligible. A full consultation is required.
- How soon will I lose weight?
- You’ll start losing weight in the first month, with dramatic results in the first year.
- Are the results permanent?
- Yes, if you follow the recommended diet, lifestyle changes, and aftercare support.
- Is it safe to have this surgery in Turkey?
- Yes. Eva Clinic follows international medical standards and uses certified hospitals and equipment.
Start Your Weight Loss Journey Today
Take the first step toward a healthier you with Eva Clinic Istanbul. Contact our medical consultants now for a free online consultation and receive a personalized treatment plan.
