The specifics of your surgery will depend on your unique situation and the policies of the hospital or doctor. Some sleeve gastrectomies are performed through traditionally large (open) abdominal incisions. However, a laparoscopic sleeve gastrectomy involves inserting tiny instruments through numerous tiny incisions in the upper abdomen. Laparoscopic surgery offers several advantages over traditional open surgery and is the used method in Iran. These advantages include: Smaller incisions: Laparoscopic surgery requires only small incisions, which results in less tissue damage, reduced scarring, and a quicker recovery time compared to open surgery. Reduced pain: Because the incisions are smaller and there is less trauma to the surrounding tissues, patients often experience less postoperative pain. Faster recovery: Patients undergoing laparoscopic surgery typically have a shorter hospital stay and a quicker return to normal activities compared to those undergoing open surgery. Lower risk of complications: Laparoscopic surgery generally carries a lower risk of complications such as infection and bleeding compared to open surgery. Before your surgery, a general anesthetic is administered. During surgery, anesthesia is a medication that keeps you relaxed and asleep. When performing a sleeve gastrectomy, the surgeon removes the larger, curved portion of the stomach and stitches the stomach vertically to form a narrow sleeve. A typical surgery lasts one to two hours. You awaken in a recovery room following surgery, where medical personnel check for any complications.