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Bariatric surgery, also called Weight loss surgery, is used as a last resort to treat people who are dangerously obese (carrying an abnormally excessive amount of body fat). Bariatric surgery is used treat people with potentially life-threatening obesity when other treatments, such as lifestyle changes, haven't worked.
Potentially life-threatening obesity is defined as:
The two most widely used types of weight loss surgery are:
Several other surgical techniques may be recommended in certain circumstances.