Gastric Bypass Surgery in Mexico — From $6,000, ~70% Excess Weight Loss
Roux-en-Y and Mini Gastric Bypass performed by board-certified surgeons led by Dr. Alejandro López. 20,000+ procedures, 2-day hospital monitoring, and an all-inclusive package — at a fraction of US/Canadian prices.
What Is Gastric Bypass Surgery?
Gastric bypass (Roux-en-Y) creates a small stomach pouch and reroutes a portion of the small intestine. The result: you eat less, absorb fewer calories, and the gut hormones that drive hunger and blood sugar shift dramatically — with improvements in metabolic markers often visible within the first weeks.
Performed laparoscopically through 4–5 small incisions, the surgery takes ~90 minutes. We add staple-line suturing for additional safety beyond standard bypass technique.
- Restrictive + malabsorptive — strongest weight-loss mechanism
- Excellent for severe obesity (BMI 40+) and metabolic disease
- May significantly improve metabolic health (results vary by patient)
- Permanent reconfiguration — durable long-term results

Gastric Bypass or Gastric Sleeve — Which Is Right For You?
Both are gold-standard bariatric procedures. Here's how they compare so you can discuss the best fit with our surgical team.
| Factor | Gastric Sleeve | Gastric Bypass |
|---|---|---|
| Mechanism | Restrictive (smaller stomach) | Restrictive + malabsorptive |
| Excess weight loss (1 yr) | ~60–65% | ~70% |
| improvement in metabolic health | ~60% | ~80% |
| GERD/reflux | Can worsen | Often improves |
| Hospital stay | 1–2 days | 2 days |
| Reversible | No (stomach removed) | Reversible / convertible |
| Best for | BMI 30–45, simpler recovery | BMI 40+, diabetes, severe GERD |
| Starting price (Mexico) | From $4,500 | From $6,000 |
Is Gastric Bypass Right For You?
Bypass is the strongest bariatric option for severe obesity, metabolic disease, and patients who haven't succeeded with other approaches.
✅Ideal Candidates
- BMI of 40+ (or 35+ with obesity-related conditions)
- Type 2 diabetes — many patients experience significant improvement (results vary by patient)
- Severe acid reflux / GERD
- Failed previous diet, exercise, or treatment attempts
- Plateaued or regained weight after gastric sleeve
- Adults 18–65 in generally stable health
⚠️Not Recommended If
- BMI under 30 — sleeve or non-surgical options likely better
- Active substance abuse or unmanaged eating disorder
- Severe heart, lung, or kidney disease
- Pregnancy, or planning pregnancy in the next 18 months
- Unable to commit to lifelong nutritional requirements
Roux-en-Y vs Mini Gastric Bypass
Both produce excellent results. The choice depends on your medical history and surgical goals.
Roux-en-Y Gastric Bypass
The classic procedure: small stomach pouch + Y-shaped intestinal rerouting. Most studied bariatric surgery in the world with 50+ years of long-term data.
- ~70% excess weight loss at 1 year
- ~80% type 2 improvement in metabolic health
- Best for severe GERD / acid reflux
- Reversible / revisable in the future
Mini Gastric Bypass (One-Anastomosis)
A simpler one-loop variation. Shorter operating time, fewer connection points, slightly faster recovery — with comparable weight-loss outcomes.
- ~70% excess weight loss at 1 year
- Shorter surgery time (~1 hour)
- Simpler reconnection — fewer technical risks
- Easier to revise if needed
Bypass Pricing in Mexico
Prices include hospital, surgeon, anesthesia, hotel, and ground transport. Flights are excluded.
| Procedure | From (USD) |
|---|---|
| Gastric Bypass — Tijuana | $5,900 |
| Gastric Bypass — Guadalajara | $6,600 |
| Gastric Bypass — Puerto Vallarta | $6,600 |
| Mini Gastric Bypass | From $5,900 |
| Bypass Revision Surgery | From $6,700 |
* Prices may vary based on individual evaluation. Financing available.
What's Included When You Book
Step-by-Step — From Consultation to Recovery
Free Online Consultation
Talk with a patient coordinator, share your medical history, and review surgical options. No commitment.
Medical Approval & Date Booking
Complete a medical questionnaire and lab review. Approved patients pick a surgery date and location (Tijuana, Guadalajara, or Vallarta).
Travel & Arrival
Fly into your chosen city. Driver pickup at airport, transfer to hotel near the hospital. Bilingual support throughout.
Pre-Op Day
Lab work, EKG, and one-on-one consultation with Dr. López to finalize the plan and answer questions.
Surgery Day
Laparoscopic gastric bypass at an accredited hospital. ~90-minute procedure under general anesthesia.
2-Day Hospital Recovery
Inpatient monitoring with ICU-level nursing. Walking same day. Liquid diet starts the day after surgery.
Hotel Recovery + Flight Home
1–2 days at the hotel under continued team supervision. Driver back to the airport when cleared. Most patients fly home day 5–7.
30-Day Follow-Up & Lifetime Support
Phone check-ins, nutrition guidance, vitamin schedule. We support you long-term.
What Recovery Looks Like
Most patients return to desk work in 2 weeks and full activity in 4–6 weeks. Here's a week-by-week roadmap.
Liquid Diet
Clear liquids, then full liquids. Sip slowly. Walk daily. No heavy lifting. Driver returns you to the airport.
Pureed Foods
Pureed proteins, soft eggs, yogurt. Most patients return to desk-job work. Light activity.
Soft Foods
Soft proteins, vegetables, soft fruits. Resume most activities. Begin gentle strength training.
Solid Foods & Full Activity
Full diet of solid foods (small portions). Return to gym, full work, travel. Lifetime vitamin supplementation begins.
Where Dr. López Performs Gastric Bypass
Choose the location that fits your travel and lifestyle — same surgeon, same standard of care at all three.
Tijuana, Mexico
Fly to San Diego, 30-minute drive across the border. Lowest pricing of all 3 locations — most popular for US patients.
Tijuana details
Guadalajara, Mexico
Mayo Clinic Network-affiliated hospital. Direct flights from Chicago, Texas, LA. Mexico's medical capital.
Guadalajara details
Puerto Vallarta, Mexico
Pacific coast resort recovery. Direct flights from Canada (Vancouver, Toronto, Calgary) and major US cities.
Vallarta details
Dr. Alejandro López — Medical Director
Dr. López trained at the University of Guadalajara and completed bariatric fellowship at Cook County Hospital in Chicago. He personally performs every gastric bypass at our Tijuana, Guadalajara, and Vallarta locations — using staple-line suturing for added safety beyond standard bypass technique.
“Seeing my patients happy with the results of my work — it will always be the goal of my life.”Learn More About Dr. López
Bypass Patients — Before & After
Patients from across the US and Canada share their journey after Roux-en-Y or Mini Gastric Bypass with Dr. López's team.
“I had a sleeve 8 years ago and regained 40 lb. Dr. López performed a revision to bypass and my reflux improved significantly on top of the weight loss. Down 65 lb at 9 months — and my blood sugar levels improved to a healthy range.”

Bypass Patient Reviews
“Dr. López performed my Roux-en-Y in Tijuana. Significant improvement in blood-sugar control within weeks. Down 55 lb in 6 months. Best decision of my life.”
“Mini bypass in Guadalajara. The 2-day hospital stay was reassuring — fully monitored, world-class care. Recovery was easier than expected.”
“Flew direct from Calgary to Vallarta. Combined surgery with a beachfront recovery. The medical team was outstanding — and the price was 1/3 of Canada.”
“Sleeve-to-bypass revision after I regained weight. Dr. López caught GERD issues I didn't even know were progressing. 70 lb down at one year.”
Frequently Asked Questions
Ready to Transform Your Life?
Free consultation. Personalized surgical plan. Same Dr. López who performs at Mayo-affiliated hospitals — at a fraction of the US/Canada cost.
Bariatric Resources
Gastric Bypass Across Mexico
ALO Bariatrics performs gastric bypass surgery in 3 cities in Mexico, with U.S. board-certified surgeons and JCI-accredited hospitals.