We determined the cross-sectional dimensions of the compound femoral nerve just distal to the inguinal ligament in six subjects. All subjects were male, mean ± standard deviation (SD) 62.20 ± 5.56 years (range 51–66). We received approval for nerve exposures in subjects undergoing elective vascular surgery from the Institutional Review Board of the Louis Stokes Cleveland Department of Veterans Affairs Medical Center. Subjects underwent standard longitudinal groin incisions to expose the common femoral artery for bypass. Concurrently, we dissected the femoral nerve at that level. We exposed the nerve and then determined the dimensions. We also measured nerve widths using surgical photographs.