Bariatric surgery in Spain

Free first consultation with doctor Torres*

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We will advise you during a virtual consultation about your treatment and the possibilities that best suit you.



You will be in the best hands for an intervention designed according to your characteristics and needs.



We will be alongside you on your journey with a tailor-made program and follow up consultations to achieve the best results.

Physicians with specialized training

Meet our medical team

Our team of highly qualified professionals will perform the surgical procedure at the HM Monteprincipe Obesity Association in Madrid


Stories of our patients

Learn first-hand how we have helped hundreds of patients to improve their lives.


Care and support

We provide you with a personalized follow-up care and support guide to help you achieve your goals safely.


We answer your questions

We pride ourselves on having an honest and transparent approach so that you are aware of procedures and results – before, during and after the procedure.

Patient satisfaction
Highly qualified professionals at your disposal
Mortality rate
Patients successfully operated

Stomach reduction

Bariatric Surgery by laparoscopy is a method to reduce stomach capacity and modify the gastrointestinal anatomy in order to yield significant and long-lasting weight loss in patients who want to lead an overweight-free life.

There are several options for a stomach reduction. Which one is most suitable for the patient depends on the individual circumstances and is discussed and determined beforehand with the surgeon. With the gastric sleeve we will achieve two things:

Decrease the volume of the stomach. The main and first (advantageous) consequence of vertical tubular gastrectomy is almost immediate weight loss. The patient will feel satiated by ingesting small amounts of food, so that, following some dietary guidelines and doing some daily exercise, you will be able to maintain your new weight without problems.

Decrease Ghrelin production. Ghrelin is a hormone produced at the bottom of the stomach that stimulates appetite. Since this bariatric surgery removes the bottom of the stomach, almost all Ghrelin disappears and the patient experiences loss of appetite. This helps to eliminate some of the food cravings that people who are overweight or obese sometimes experience.

Laparoscopic gastric bypass surgery

Gastric bypass has long been one of the most performed methods of gastric reduction, especially in the United States. DR. TORRES only recommends gastric bypass surgery in individual cases. Although this method has shown promising results in the past, it has been and is increasingly being overtaken and displaced by gastric sleeve surgery.

Gastric bypass surgery is minimally invasive. The stomach is closed with staples just below the oesophagus and consequently cut. A connection between the small intestine and the remaining part of the stomach ensures that food is transported to the small intestine. Therefore, the stomach is bypassed.

Gastric bypass usually significantly reduces the amount of food intake, resulting in the patient losing significant weight straight after the procedure.

However, this method of reducing the size of the stomach has some disadvantages compared to gastric sleeve surgery. These include, as an example, the lifelong intake of dietary supplements, vitamins and minerals associated with the procedure.

Your health and your life are in the best hands

Professor Torres is a world reference in bariatric surgery. He directs the Unit and combines his work in healthcare with teaching.

Professor Antonio Torres

Professor and academic, he has received dozens of awards. He is the author of more than 150 publications and more than 300 congresses.

World reference in Bariatric Surgery. Director of the Bariatric and Metabolic Surgery Unit at the Montepríncipe Obesity Unit, Head of General and Digestive Surgery at the Hospital Clínico San Carlos.

He is currently an active member of National and International Professional Associations: European Association of Endoscopic Surgery and Spanish Society of Surgeons (EAES), International Society for Diseases of the Oesophagus (ISDE), European Surgical Association, International Surgical Association (ISS / SIC), among others.

Further information

Gastric bypass / stomach reduction

From £9,459

Laparoscopic surgery and anesthesiologist included

Online consultation with Dr. Torres and his team

Diagnostic and preoperative tests in HM Hospital

Hospitalization: between 24 and 72 hours

Personal assistance in English or German 24 hours a day

Transfer from the airport to the hotel and to the clinic

Follow-up of at least 3 visits with Dr. Torres

Your health and your life are in the best hands

Phone number

+34 679 275 843



Av. de Montepríncipe, 25, 28660 Boadilla del Monte, Madrid