Gastric bypass surgery, LAP-BAND surgery, and gastric sleeve surgery: which weight-loss procedure is right for you? Now that you’ve taken your first step toward becoming healthier, your next big challenge is figuring out the pros and cons of each type of weight-loss surgery. Fortunately, each type of bariatric surgery has been proven effective at helping individuals lose weight and keep it off long-term, so regardless of the surgery you choose, it’s a win-win situation all the way around.