Ilioinguinal Nerve

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Ilioinguinal nerve.jpeg
Ilioinguinal Nerve
Nerve Type Mixed nerve
Origin L1
Course Lateral border of psoas major muscle, inferior through the anterior abdominal wall, anterior to quadratus lumborum muscle until the iliac crest, through the transversus abdominis and internal oblique muscles, then through the superficial inguinal ring.
Sensory innervation Skin to inguinal region, small area of medial thigh, upper scrotum/labia.
Motor innervation Transversus Abdominis, Internal Oblique
Conditions Ilioinguinal Nerve Entrapment

Innervation of the Perineum

Innervation of the perineum: A: genitofemoral nerve; B: obturator nerve; C: inferior cluneal nerve; D: perineal branch of the posterior femoral cutaneous nerve; E: ilioinguinal nerve; F: pudendal nerve
Copyright Andrea Trescot[1]


  1. โ†‘ Trescot, Andrea. Peripheral nerve entrapments : clinical diagnosis and management. Switzerland: Springer, 2016.