Bariatric surgery is an operation on the stomach and/or intestines that helps patients with extreme obesity to reduce . Severe obesity may be a chronic condition that’s hard to treat with diet and exercise alone. This surgery is an option for people that cannot reduce by other means or that suffer from serious health problems associated with obesity. The surgery restricts food intake, which promotes weight loss and reduces the danger of type 2 diabetes. Some surgeries also interrupt how food is digested, preventing some calories and nutrients, like vitamins, from being absorbed. Recent studies suggest that bariatric surgery may even lower death rates for patients with severe obesity. the simplest results occur when patients follow surgery with healthy eating patterns and regular exercise.