Due to the high failure rate or relapse in the medical, nutritional and pharmacological treatment it is considered bariatric surgery as a treatment of choice for the management of severe obesity (BMI> 35). Currently surgery is considered as the only effective and lasting treatment for morbid obesity. It is recommended to consider surgical procedures where the surgical and multidisciplinary team trained and appropriate care institution in resources there. These surgical procedures are classified into three types: restrictive, malabsorptive or mixed (combination of restrictive and malabsorptive). Restrictive procedures are those that reduce stomach capacity, including the gastric band and sleeve gastrectomy.