If your BMI is over 40, or you have a BMI over 35 with associated obesity related disorders (such as high blood pressure, diabetes, high cholesterol, sleep apnoea, arthritis) the Australian National Health & Medical Research Council recommends you have weight loss surgery. Some people who have had certain procedures on their gastrointestinal system may be unable to have certain types of weight loss operations. And some medical disorders make the procedures extremely dangerous. We will discuss these issues when you see us.