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The transversus abdominis plane (TAP) block is an ultrasound guided technique where a local anesthetic solution is injected into a plane between the internal oblique muscle and transversus abdominis muscle. The thoracolumbar nerves originating from the T6 to L1 spinal roots run into this plane and supply sensory nerves to the anterolateral abdominal wall, the local anesthetic spread in this plane can block the neural afferents and provide analgesia to the anterolateral abdominal wall. The effectiveness of TAP blocks for a variety of abdominal surgeries, such as cesarean section, hysterectomy, cholecystectomy, colectomy, prostatectomy, and hernia repair.

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