 Currently, the Quadratus Lumborum block QL block is performed as one of the perioperative pain management procedures for all generations pediatrics, pregnant, and adult undergoing abdominal surgery. The local anesthetic injected via the approach of the posterior QL block QL 2 block can more easily extend beyond the TAP to the thoracic paravertebral space or the thoracolumbar plane, the posterior QL block entails a broader sensory-level analgesic and may generate analgesia from T7 to L1. Use of posterior QL block in laparoscopic cholecystectomy has not been investigated before and it is the variant that will be discussed in our study. 