Thousands of patient records had been reviewed and yielded an alarming discovery about a previously unknown risk associated with a popular weight loss operation: Suicide in bariatric surgery. Bariatric surgery is a complex surgical procedure concerned with causes, prevention and treatment of severe overweight known as obesity. Bariatric operations are major gastrointestinal procedures which alter the capacity and/or the anatomy of the digestive system. In simple terms, the stomach is made smaller so as to speed up weight loss. Some bariatric procedures are performed using general anesthesia via a midline abdominal incision. Another method is to use laparoscopic surgical techniques, involving smaller instruments connected to cameras through which they view the operational site.