Gastric Bypass: The solution for sustainable weight loss
From 12220€
Procedure time
2 hours
Anesthesia
General
Postoperative rest
24 hours
Visible results
3 months
Recovery
15 days
Results
Lifetime
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With our own medical team
What is gastric bypass?
Gastric bypass is a surgical procedure designed to help individuals lose weight effectively and safely. It is often recommended for patients who have struggled with traditional weight loss methods such as diet, exercise, or medication, but have not seen success. This procedure works by altering the digestive system, reducing the stomach to the size of a walnut, which limits food intake and facilitates long-term weight loss.
How is Gastric Bypass procedure performed?
Gastric bypass is performed using laparoscopic surgery, involving small incisions in the abdomen. Through these incisions, the surgeon reduces the stomach size and reroutes a section of the small intestine, so the new stomach has a much smaller capacity. This modification limits food intake and reduces calorie absorption, contributing to sustained weight loss. The procedure typically lasts between two and four hours and requires several days of hospitalization.

Who is a good candidate for gastric bypass?
Gastric bypass is recommended for individuals with a body mass index (BMI) of 35 to 40 or higher, or for those suffering from related conditions like diabetes or hypertension. It is also suitable for individuals who have unsuccessfully tried other weight loss methods and are willing to commit to a lifestyle change that includes maintaining a balanced diet and regular exercise post-surgery. Patients must be dedicated to following medical advice, understanding that gastric bypass is a tool to facilitate weight loss, not a quick fix.
Preoperative tests for gastric bypass
Before undergoing gastric bypass surgery, patients must undergo several tests to ensure their body is prepared for the procedure:
- Complete blood Test: To check overall health.
- Cardiac evaluation: To ensure the heart can handle surgery.
- Psychological assessment: To address potential changes in eating habits and body image.
- Nutritional consultation: To prepare for the dietary changes following surgery.

Postoperative Care for Gastric Bypass
Post-surgery care is critical for a successful recovery. After gastric bypass, patients should follow these guidelines:
- Liquid diet: During the first few weeks to allow the stomach to heal.
- Soft foods: Gradually transition to solid foods.
- Vitamin supplements: To prevent nutrient deficiencies, particularly in B12, iron, and calcium.
- Regular blood tests: To monitor nutrient absorption.
- Follow-up consultations: With the surgeon to check incision sites and overall health.
- Nutritional evaluations: To ensure proper adherence to a balanced diet.
Significant change in eating habits
Increased sense of fullness after meals
Effective and sustainable weight loss
Improved quality of life and overall health
How Much Does Gastric Bypass Cost?
The cost of gastric bypass surgery varies depending on the country, clinic, and medical team performing the procedure. Typically, costs include:
- Surgical fees
- Hospital expenses
- Preoperative and postoperative consultations
- Required tests before and after surgery
The average cost ranges from €12,222 to €15,000, depending on location and specific patient needs. It is advised to consult the clinic for an accurate estimate. A cost calculator is also available for a more precise price estimate.
Factors influencing the price of gastric bypass
- Surgical technique: The method used, such as laparoscopic bypass versus open surgery, can influence the cost.
- Procedure duration: The longer the surgery, the higher the cost.
- Materials used: Special instruments, staplers, or surgical devices may increase the price.
- Hospital stay: The number of days required for hospitalization affects the total cost.
- Postoperative care: Additional services such as check-ups, dietary support, or follow-up care may raise the overall cost.

Where can I get a gastric bypass?
At Clínica EGOS, we offer the gastric bypass procedure at several of our locations, so you can access the treatment you're looking for in a comfortable and convenient way.
Frequently asked questions about gastric bypass surgery
How much weight can I lose with gastric bypass surgery?
Most patients lose between 50% and 70% of their excess weight within the first year after surgery. However, results may vary depending on individual factors and commitment to lifestyle changes.
Can I regain weight after the surgery?
Although gastric bypass is highly effective for weight loss, patients may regain weight if they do not adhere to long-term dietary and exercise guidelines. Maintaining a healthy lifestyle is crucial to preserving results.
What are the risks associated with gastric bypass surgery?
Risks include:
- Infection: As with any surgery, there is a risk of infection at the surgical site.
- Excessive bleeding: Significant blood loss may occur during or after surgery.
- Blood clots: There's a risk of developing clots, which can be dangerous if they travel to the lungs or brain.
- Leaks from sutures: There may be leakage from the sutures in the stomach or intestines.
- Malnutrition: Reduced nutrient absorption can lead to vitamin and mineral deficiencies.
- Dumping syndrome: When food moves too quickly from the stomach to the small intestine, it can cause nausea, diarrhea, dizziness, or sweating.
- Bowel obstruction: An intestinal blockage may occur and require medical intervention.
- Excessive weight loss: In some cases, patients may lose more weight than desired, which can cause health problems.
Will I need to take supplements after surgery?
Yes, lifelong vitamin and mineral supplementation is necessary to prevent nutritional deficiencies due to reduced absorption.
What is dumping syndrome?
It is a condition where sugary or fatty foods move too quickly into the small intestine, causing nausea, diarrhea, dizziness, or sweating. It’s common after gastric bypass and can be avoided with a proper diet.
Will gastric bypass affect my daily life?
Yes, your eating habits will change. You’ll need to eat smaller portions and avoid certain foods. Most patients report a significantly improved quality of life.
Can I get pregnant after gastric bypass?
Yes, but it is recommended to wait at least 12 to 18 months post-surgery to allow your weight to stabilize before becoming pregnant.
Are vomiting or nausea common after treatment?
Yes, they are common if large amounts of food or unsuitable foods are consumed. It’s important to follow dietary guidelines and eat small portions.
Can I drive after gastric bypass surgery?
It is recommended to wait 1 to 2 weeks before driving, as you may experience discomfort or be under the influence of medications that affect your ability to drive.
Can I lift weights after surgery?
Heavy lifting or high-intensity workouts should be avoided for 2–3 months after surgery. Allow your body time to heal and avoid straining your abdominal area.
Can I travel abroad after gastric bypass surgery?
Yes, but it’s advisable to wait at least one month after surgery before taking long or international trips. Ensure you bring all necessary medications and supplements.
Can I eat out after gastric bypass?
Yes, but since your stomach capacity is smaller, it's best to eat smaller portions and choose foods that won't cause discomfort. Plan ahead and choose restaurants that offer diet-appropriate options.

Treatments related to gastric bypass
Our weight loss team

Dr. Ricard Sorio
As a doctor specialized in weight loss treatment, I consider gastric bypass to be one of the most effective tools we have to help patients struggling with severe obesity. This procedure not only reduces the stomach’s capacity but also alters the way the body absorbs nutrients, resulting in significant and long-lasting weight loss.
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Dr. Carlos Rodríguez
I recommend gastric bypass to patients seeking a long-term, effective solution for severe obesity, especially when other methods have not yielded the desired results. With this technique, we not only reduce the size of the stomach, but also modify the digestive system to limit calorie absorption, enabling significant and sustained weight loss.
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