This will be a randomized, double-blinded prospective trial. Group A patients will be randomized to receive a TAP block with local anesthetic on the right, sham block on the left. Group B be will randomized to receive the reverse. The study population will be limited to healthy parturients undergoing elective caesarian section with spinal anesthesia (SAB) or combined spinal-epidural anesthesia (CSE) placed in the operating room at time of surgery.