Many other procedures lend themselves to the laparoscopic approach. In the specialty of General Surgery, hernias, gallstones and reflux are the most common conditions treated, but many bowel operations, including appendicectomy, can be done laparoscopically. Weight reduction surgery is ideal for laparoscopic technology (gastric band, sleeve gastrectomy, gastric bypass). Splenectomy (removal of the spleen), adrenalectomy (adrenal resection) and some liver operations are also possible. In major population centres, these procedures tend to come under the care of surgeons with particular expertise in those aspects of surgery.