<prompt> Nerve most commonly injured in Mac Burneys incision -SubcostalIliohypogastric N.11th thoracicIlioinguinal  <response>: Ans. is b i.e.. Iliohypogastric N. o Right inguinal hernia is more common following a grid iron MC Burneys incision for appendiccectomy and is due to injury to the iliohypogastric nerve - Bailey Love 