Weight-loss surgery that can also help with type 2 diabetes and reflux, with a dietitian-led plan and a year of follow-up.
In a gastric bypass (Roux-en-Y gastric bypass), a small pouch is made at the top of the stomach and connected directly to the small intestine. Food bypasses most of the stomach and the first part of the intestine.
This works in two ways: you feel full after much smaller meals, and changes in your gut hormones reduce hunger and help your body control blood sugar. That's why a bypass can be especially helpful for people with type 2 diabetes.
Like any weight-loss operation, it's a tool, not a cure on its own. Your results depend on the changes you make, with support from our team.
A gastric bypass may suit you if:
A bypass may not be the best choice if you need to take anti-inflammatory painkillers regularly, for example for arthritis, as they increase the risk of ulcers after a bypass.
Your surgeon will recommend the operation that suits your weight, health and reflux. See our gastric sleeve page.
| Gastric sleeve | Gastric bypass | |
|---|---|---|
| How it works | Around three-quarters of the stomach is removed | A small stomach pouch is joined to the small intestine |
| Acid reflux | Can start or get worse | Often improves |
| Type 2 diabetes | Often improves | Often improves more |
| Operation | Simpler, about 1–2 hours | More complex, about 2–3 hours |
| Vitamins | Needed for life | Needed for life, and deficiencies are more likely |
| Dumping syndrome | Less common | More common, especially after sugary food |
| Reversible | No | Possible in theory, but complex |
Your surgery is performed by a specialist in General Surgery with experience in weight-loss surgery. You can find your surgeon's profile, qualifications and experience on the Our Doctors page.
You're also supported by a dietitian before and after surgery, and by a psychologist if needed.
Surgery, a higher body weight and a long flight all increase the risk of blood clots. That's why:
Not included: flights, travel insurance, personal expenses, vitamins and supplements after you return home, and blood tests at home.
Your new stomach pouch and the joins need time to heal, so you return to food in stages:
| Stage | Roughly when | What you eat |
|---|---|---|
| Clear fluids | First days | Water, clear broth, sugar-free drinks, in small sips |
| Full fluids | Up to week 2 | Protein shakes, milk, smooth soups |
| Puréed food | Weeks 3–4 | Food blended until smooth |
| Soft food | Weeks 5–6 | Soft foods you can mash with a fork |
| Normal textures | From around week 7 | Small portions of healthy food, eaten slowly |
Avoiding dumping syndrome: after a bypass, sugary or fatty food can pass into the intestine too quickly. This can cause nausea, cramps, sweating, a racing heart and tiredness. To avoid it, cut out sugary food and drinks, eat slowly, and don't drink with meals: wait about 30 minutes before and after eating.
A bypass changes how your body absorbs nutrients, so deficiencies are more likely than after a sleeve. You'll need to take supplements every day for the rest of your life. These usually include:
You'll need regular blood tests to check your levels. Your GP can arrange these at home using the plan we give you. Without supplements, deficiencies can lead to anaemia, weak bones and nerve problems.
Many people lose around 60% to 75% of their excess weight in the first 12 to 18 months. Weight loss is fastest in the first six months. Results vary, and weight can be regained over time.
Many people with type 2 diabetes see a big improvement, sometimes within days of surgery, and some are able to stop or reduce their medicines. Reflux, high blood pressure and sleep apnoea often improve too. Your GP will need to review your medicines as your weight and blood sugar change.
After major weight loss, some people have loose skin. This can be treated later with post-bariatric body contouring, usually once your weight has been stable for six months.
Your surgeon will go through your personal risks with you before you decide.
How is a bypass different from a sleeve?
A sleeve removes part of the stomach. A bypass makes a small pouch and reroutes the intestine, which also changes how you absorb food and how your hormones control hunger and blood sugar.
Will a gastric bypass cure my diabetes?
Many people see a big improvement and some can stop their medicines, but it can't be guaranteed. Your diabetes still needs to be monitored by your GP.
Can a gastric bypass be reversed?
In theory, yes, but it's a complex operation with its own risks. It's best to think of a bypass as permanent.
I've had a gastric sleeve and now have reflux or have regained weight. Can I have a bypass?
In some cases, a sleeve can be converted to a bypass. Your surgeon will review your previous surgery and tell you whether this is suitable.
Can I drink alcohol?
Avoid it for at least six months. After that, be very careful, as alcohol affects you much more strongly after a bypass.
When can I go back to work?
Many people with desk jobs return after two to three weeks.
Can someone come with me?
Yes, and we strongly recommend it. Your companion can stay with you at the hotel.
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| JCI-Accredited Hospital Contracted Hospital |
Gastric Bypass Surgery Roux-en-Y, Laparoscopic |
| Gastric bypass procedures at Medicape Health are performed at our JCI-accredited partner hospital in Adana, where anaesthesia and inpatient care are available throughout your stay. | In a gastric bypass (Roux-en-Y), a small pouch is made at the top of the stomach and connected directly to the small intestine. It is performed by a specialist in General Surgery with experience in weight-loss surgery. |
The cost depends on your health, the tests you need, whether you've had stomach surgery before and the length of your stay. We can only give an accurate price after your surgeon has reviewed your medical information. Send us your details and you'll receive a written, all-inclusive quote within 24 hours of the review.
Tell us briefly about your case and our patient coordinator will get back to you with the details.
Send us your height, weight and health details on WhatsApp. A patient coordinator replies within 24 hours, and your surgeon will tell you honestly whether a sleeve or a bypass is right for you before anything is booked.
A Partnership Backed by International Trust
Medicape Health works in partnership with Medline Adana Hospital, a long-standing healthcare provider for the international community, including U.S. personnel associated with İncirlik Air Base.
A Relationship Recognized Since 2015
Medline Hospital’s quality of care and patient experience were recognized by the Commander of the U.S. Air Force 39th Medical Group in 2015.
About our partner hospital
Gastric Sleeve Surgery
Type 2 Diabetes Surgery
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