The weight loss surgery, also known as bariatric surgery, is a procedure that aims to help the patient lose weight through decreasing the amount of food intake in their stomach that can be done either by shortening or bypassing a part of the small intestine, which reduces the amount of calories and nutrients the body absorbs, or by decreasing the amount of food that stomach is able to hold in itself.
In Iran there are different treatments such as Gastric Sleeve, Gastric Balloon and Gastric Bypass.