Obesity is a major global health issue that can lead to diabetes, heart disease, joint problems, and reduced quality of life. For individuals struggling to lose weight through diet and exercise, gastric bypass surgery offers a proven and long-term solution. In recent years, Vietnam has become a popular destination for gastric bypass surgery thanks to its advanced hospitals, highly skilled surgeons, and affordable costs compared to Western countries.
This article provides an in-depth look at gastric bypass in Vietnam, including how the procedure works, benefits, cost, recovery, and why medical tourists are increasingly choosing Vietnam for safe and successful weight loss treatment.
What Is Gastric Bypass Surgery?
Gastric Bypass Surgery, medically known as Roux-en-Y gastric bypass, is a type of bariatric (weight loss) surgery that helps patients lose significant weight by reducing the size of the stomach and rerouting part of the small intestine.
During the surgery:
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The surgeon divides the stomach into a small upper pouch (about the size of an egg) and a larger lower portion.
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The small pouch is then connected directly to the small intestine, bypassing most of the stomach and the first segment of the intestine (the duodenum).
As a result:
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The patient feels full faster and eats smaller portions.
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The body absorbs fewer calories and nutrients, leading to rapid and sustained weight loss.
How Gastric Bypass Surgery Works
The procedure is typically performed under general anesthesia using laparoscopic (keyhole) surgery, which involves small incisions and a camera for precision.
Step-by-Step Process:
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Pre-surgical assessment – Includes physical exams, blood tests, and consultations with a bariatric surgeon and nutritionist.
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Anesthesia and incisions – The surgeon makes 4–6 small cuts in the abdomen to insert instruments.
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Stomach division – The upper portion of the stomach is stapled to create a small pouch.
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Bypass creation – A section of the small intestine is connected to the new stomach pouch.
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Closure and recovery – The incisions are closed, and patients spend 2–3 days in the hospital under observation.
The entire operation typically lasts 2–3 hours, and patients can return home within 5–7 days.
Benefits of Gastric Bypass Surgery
Gastric bypass is one of the most effective bariatric procedures, offering both physical and metabolic benefits.
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Substantial Weight Loss: Patients often lose 60–80% of excess body weight within the first 12–18 months.
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Improved Health Conditions: Many patients experience complete remission or improvement in obesity-related diseases such as:
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Type 2 diabetes
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Hypertension
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Sleep apnea
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High cholesterol
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Fatty liver disease
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Improved Quality of Life: Increased mobility, better self-confidence, and higher energy levels.
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Hormonal Effects: The surgery changes gut hormones that reduce appetite and improve metabolism.
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Long-Term Success: With proper diet and exercise, results can last a lifetime.
Who Is a Good Candidate?
Gastric bypass is suitable for individuals who:
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Have a Body Mass Index (BMI) of 40 or higher, or
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Have a BMI between 35 and 39.9 with obesity-related conditions (e.g., diabetes, hypertension).
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Have tried but failed to lose weight through non-surgical methods.
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Are willing to follow post-surgery dietary guidelines and lifestyle changes.
It’s not recommended for those with severe heart disease, untreated psychiatric conditions, or substance abuse issues.
Types of Gastric Bypass Performed in Vietnam
Leading hospitals in Vietnam perform several variations of the procedure, including:
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Roux-en-Y Gastric Bypass (RYGB) – The standard and most common form worldwide.
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Mini Gastric Bypass (Single Anastomosis Gastric Bypass) – A simpler, faster procedure with fewer connections between stomach and intestine, leading to quicker recovery.
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Laparoscopic vs. Open Surgery – Most hospitals now use laparoscopic techniques, resulting in minimal scarring and faster healing.
Cost of Gastric Bypass Surgery in Vietnam
Vietnam offers one of the most affordable bariatric surgery options in Asia. Prices vary depending on the hospital, surgeon’s experience, and medical package.
| Country | Average Cost (USD) |
|---|---|
| Vietnam | $6,000 – $9,000 |
| Thailand | $9,000 – $12,000 |
| South Korea | $10,000 – $14,000 |
| Australia | $15,000 – $20,000 |
| USA | $18,000 – $30,000 |
In Vietnam, packages often include:
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Pre-surgery check-ups and blood tests
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Surgeon and anesthesiologist fees
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2–3 nights hospital stay in a private room
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Medication and post-surgery care
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English-speaking nurse and interpreter
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Follow-up appointments

Consultation about gastric bypass weight loss surgery between a Vietnamese doctor and a foreign patient at an international hospital in Vietnam.
Top Hospitals for Gastric Bypass in Vietnam
1. Vinmec International Hospital (Hanoi & Ho Chi Minh City)
A JCI-accredited hospital offering advanced laparoscopic bariatric surgery performed by surgeons trained in France and Japan. Known for personalized care and post-surgery nutritional support.
2. FV Hospital (Ho Chi Minh City)
A French-managed international hospital specializing in minimally invasive surgery. Provides comprehensive weight management programs combining medical, dietary, and psychological support.
3. Tam Anh General Hospital
Features a modern digestive and bariatric surgery center equipped with 3D laparoscopic systems and ICU-standard recovery rooms.
4. 108 Military Central Hospital (Hanoi)
Renowned for high-precision gastrointestinal and metabolic surgeries, serving both local and foreign patients under strict safety protocols.
Recovery and Aftercare
After surgery, patients typically spend 2–3 days in the hospital and then rest for another week before returning to work.
Post-Surgery Timeline:
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Week 1–2: Liquid diet (broths, juices, protein shakes).
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Week 3–4: Pureed foods and soft meals.
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After 1 month: Gradual reintroduction of solid foods.
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After 3 months: Most patients can eat a normal, balanced diet.
Regular follow-ups include check-ups with the surgeon and nutritionist to ensure proper healing and vitamin supplementation. Patients should take multivitamins, calcium, and B12 for life to prevent nutrient deficiencies.
Why Choose Vietnam for Gastric Bypass Surgery
1. High-Quality Medical Care
Vietnam’s top hospitals meet international standards, with English-speaking staff and advanced surgical equipment.
2. Experienced Surgeons
Vietnamese bariatric surgeons are internationally trained and highly experienced in laparoscopic techniques, ensuring both safety and success.
3. Affordable Yet World-Class
You can save up to 70% compared to Western countries, with equally high surgical standards and attentive aftercare.
4. Seamless Medical Tourism Experience
Hospitals partner with MedtourVietnam to provide end-to-end assistance — from visa support to airport transfer and hotel arrangements.
5. Ideal for Recovery
After surgery, patients can recover in peaceful coastal cities like Da Nang, Nha Trang, or Phu Quoc, known for their beautiful beaches and relaxing environments.
Risks and Possible Complications
While gastric bypass is generally safe, as with any surgery, risks exist. Potential complications include:
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Infection or bleeding
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Leaking at surgical connections
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Nutrient deficiency (iron, calcium, vitamin B12)
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Dumping syndrome (nausea, dizziness after eating sugary foods)
However, these risks are minimized in accredited hospitals with proper pre-surgical evaluation and follow-up.
Frequently Asked Questions (FAQs)
1. How much weight can I lose?
Most patients lose 60–80% of their excess body weight within the first year.
2. Is the surgery reversible?
No, gastric bypass is generally permanent, though revision surgery is possible in rare cases.
3. How long will I need to stay in Vietnam?
Typically 7–10 days for consultation, surgery, and early recovery.
4. Will I need supplements?
Yes, long-term vitamin and mineral supplementation is required to maintain health.
5. When can I travel after surgery?
You can safely travel 7–10 days post-surgery, once cleared by your doctor.
Step-by-Step Process for International Patients
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Submit Your Medical Information
Send your BMI, medical history, and recent tests to receive an initial evaluation. -
Receive a Customized Treatment Plan
Get a detailed cost estimate and itinerary from a Vietnamese hospital. -
Book Your Trip
Our coordinators assist with visa, accommodation, and airport pickup. -
Undergo Surgery in Vietnam
Performed by expert bariatric surgeons using minimally invasive techniques. -
Post-Op Recovery & Support
Enjoy follow-up care, nutritional counseling, and online monitoring after returning home.
Conclusion
If you’re looking for a safe, affordable, and life-changing weight loss surgery, gastric bypass in Vietnam is an excellent option. With highly trained surgeons, international-standard hospitals, and a focus on personalized care, Vietnam provides outstanding results for patients worldwide.
Choosing Vietnam means not only regaining control over your health but also experiencing the warmth and hospitality of one of Asia’s most welcoming countries — where medical excellence meets compassionate care.
Discuss your gastric bypass treatment in Vietnam with our specialists.