Gallstones

Before surgery you will undergo an ultrasound of your gallbladder. If you have existing gallstones then your gallbladder will be removed at the time of surgery. The reason this is done is that the rapid weight loss you will experience following gastric bypass can increase the risk of developing symptomatic gallstones. If you already have gallstones the risk is high enough that preventive removal of your gallbladder is warranted.