Weight-loss (bariatric) treatments can be life-changing, but they are not interchangeable. Here is a clear comparison of the three options patients ask us about most often. Your surgeon will recommend the right one after reviewing your health in detail.
Gastric balloon: non-surgical and temporary
A soft balloon is placed in the stomach through the mouth using an endoscope, with no incisions. It stays for 6 or 12 months and helps you feel full sooner.
- Typically suits: a BMI of about 27–40, or patients who want a non-surgical start
- Stay in Istanbul: around 1–2 days
- Keep in mind: results depend on the habits you build while the balloon is in place
Gastric sleeve: the most common operation
About 75–80% of the stomach is removed laparoscopically, leaving a narrow sleeve. You eat smaller portions and feel less hungry.
- Typically suits: a BMI of 35 or more, or 30 or more with conditions such as type 2 diabetes
- Stay in Istanbul: around 5–7 days
- Keep in mind: it is permanent, and can worsen existing acid reflux in some patients
Gastric bypass: strongest metabolic effect
A small stomach pouch is connected directly to the small intestine, reducing both intake and absorption.
- Typically suits: patients with type 2 diabetes, significant reflux, or weight regain after a sleeve
- Stay in Istanbul: around 6–7 days
- Keep in mind: lifelong vitamin supplements and regular blood tests are required
At a glance
| Balloon | Sleeve | Bypass | |
|---|---|---|---|
| Surgery | No | Yes | Yes |
| Reversible | Yes | No | Technically possible, rarely done |
| Typical stay | 1–2 days | 5–7 days | 6–7 days |
| Lifelong supplements | No | Usually recommended | Required |
How to decide
The right choice depends on your BMI, medical conditions such as diabetes or reflux, previous surgery and your personal goals. Send us your details for a free assessment and our partner bariatric surgeons will explain which option is safest and most effective for you.
Gastric sleeve · Gastric bypass · Gastric balloon
The information on this page is for general guidance and does not replace a medical consultation. Suitability, technique, length of stay and recovery times are confirmed by your doctor after reviewing your medical history.