Your guide to gastric sleeve surgery abroad

Gastric Sleeve surgery, also called sleeve gastrectomy, is a weight-loss operation in which a surgeon removes a large part of the stomach, leaving a narrow, tube-shaped stomach. The smaller stomach holds less food and produces less of a hunger hormone, which can help people with severe obesity eat less and lose weight over time.

Key facts

• Treats severe obesity and can help with related conditions such as type 2 diabetes, high blood pressure and sleep apnoea
• Usually done by keyhole (laparoscopic) surgery through several small cuts in the abdomen
• Done under general anaesthesia, so you are asleep throughout
• Usually involves a short hospital stay for monitoring after the operation
• Recovery happens in stages, moving from liquids to soft foods and then to regular, smaller meals
• The operation cannot be reversed, because the removed part of the stomach is taken out permanently

Who is suitable for a gastric sleeve?

A gastric sleeve is generally considered for adults with severe obesity who have not managed to lose enough weight through diet, exercise and medical support alone. Your surgeon makes the final decision after looking at your health as a whole.

Doctors usually look at:

• Your body mass index (BMI) and any weight-related health conditions
• Your past attempts to lose weight
• Your overall fitness for surgery and anaesthesia
• Whether you are ready to commit to lifelong changes in eating habits and follow-up care

Some conditions can make the operation less suitable, such as severe acid reflux, certain stomach problems or untreated eating disorders. Your doctor may also suggest a different bariatric procedure, such as a gastric bypass, if it fits your situation better.

How is the gastric sleeve operation done?

Most gastric sleeve operations are done with keyhole surgery. The surgeon uses a camera and slim instruments to remove around three-quarters of the stomach and close the remaining part with staples.

Before surgery you will usually have blood tests, a check of your heart and lungs, and sometimes a scan or camera test of the stomach. Many clinics ask patients to follow a special low-calorie diet in the weeks before the operation, which can make the liver smaller and the surgery safer.

During the operation you are under general anaesthesia. The surgeon makes a few small cuts, inserts the instruments and creates the new sleeve-shaped stomach. In some cases the surgeon may need to switch to open surgery, and this is something to ask about beforehand.

What is recovery like after a gastric sleeve?

Recovery happens gradually and differs from person to person. Most patients spend a short time in hospital, then follow a staged diet and slowly return to daily activities as advised by their care team.

Typical recovery phases include:

• Early days: clear liquids in small sips, gentle walking to lower the risk of blood clots, and pain relief as needed
• Following weeks: a slow move from full liquids to puréed and then soft foods
• Longer term: small, protein-rich meals, eating slowly and chewing well, and drinking fluids between rather than with meals

Most people need to take vitamin and mineral supplements for life, and regular blood tests help catch deficiencies early. Follow-up with a surgeon, dietitian and sometimes a psychologist supports long-term results. If you travel abroad, plan how your aftercare will continue once you are home.

What are the risks and side effects of a gastric sleeve?

Like any major surgery, a gastric sleeve carries risks. Your surgeon should explain these clearly and talk through how they apply to you personally.

Possible risks and side effects include:

• Bleeding, infection or blood clots
• A leak from the staple line, which is a serious complication
• Reactions to anaesthesia
• New or worsening acid reflux (heartburn)
• Narrowing of the stomach sleeve
• Nutritional deficiencies if supplements and diet advice are not followed
• Loose skin after major weight loss, and possible weight regain over time

Telling your doctor about your full medical history, and following the advice you are given before and after surgery, helps lower risk. Seek medical advice quickly if you notice warning signs such as fever, severe pain or difficulty breathing.

What affects the cost of a gastric sleeve?

The cost of a gastric sleeve varies a lot between countries and clinics. Asking for a detailed written quote is the best way to understand what you will pay.

Factors that can affect the price include:

• The country and city where the clinic is located
• The surgeon's experience and the hospital's facilities
• Tests and consultations needed before surgery
• How long you stay in hospital and in the area afterwards
• Medication, supplements and follow-up appointments
• Travel, accommodation and any extra support services

Check what is included and what is not, and ask how possible complications or extra treatment would be handled.

How do I choose a clinic abroad for a gastric sleeve?

Choose a clinic based on safety, experience and clear communication rather than price alone. Take your time to compare options and ask questions before deciding.

Helpful things to check:

• The surgeon's qualifications and experience with bariatric surgery
• Whether the clinic works with a multidisciplinary team, such as dietitians and psychologists
• Hospital accreditation and access to intensive care if needed
• How your pre-operative assessment is carried out
• What aftercare and remote follow-up are offered after you return home
• Whether you can communicate easily in a language you understand

You can compare verified clinics on our marketplace to make this research easier.

How much weight can I expect to lose?

Weight loss after a gastric sleeve varies widely and cannot be guaranteed. It depends on your starting weight, health, eating habits, activity and follow-up care.

Weight loss usually happens most quickly in the first months and then slows down. The operation is a tool, not a cure, and long-term results depend on lasting changes to lifestyle. Your surgeon can explain realistic expectations for your situation.

If you are thinking about a gastric sleeve, you can compare verified clinics and send one free request. The clinics will then contact you to discuss your options. Your treating doctor will decide whether this procedure is suitable for you after a full medical assessment.