By Lisa Rapaport (Reuters Health) – – Patients may be more likely to harm themselves or attempt suicide after weight-loss surgery, a Canadian study suggests. Most of them had a common type of bariatric surgery known as gastric bypass, which helps patients shed excess pounds by reducing stomach capacity from about three pints to the size of a shot glass. During the first three years after surgery, 111 patients received emergency care for self-inflicted injuries, or roughly 1 percent of people in the study.