Bariatric surgery is carried out to help obese patients achieve weight loss. This surgery is designed for those patients who have failed to lose weight through traditional means such as dieting and exercise. The Body Mass Index of patients who are appropriate for bariatric surgery is either 35 or above with obesity related comorbidities or greater 40. The surgery is carried out to help patients from falling prey to debilitating diseases such as hypertension and obesity. For the surgery to be completely successful, the patients should be prepared to follow a diet and exercise plan after the surgery.