AN entrapment neuropathy of the ilioinguinal nerve can cause pain and disability that may present serious diagnostic difficulties. The nerve is analogous to an intercostal nerve since it has both motor and skin sensory functions. The muscular branches innervate the lowest portions of the transversus abdominis and internal oblique muscles and fascia. The peripheral distribution of the nerve is to the skin over the inguinal ligament and the base of the scrotum (or labia). A narrow strip of skin over the iliac crest is innervated by a recurrent branch.The entrapment point of the nerve is medial to the anterosuperior . . .