The gluteal epithelial nerve is formed by the combination of the posterior lateral branches of the lumbar 1-3 spinal nerves. The gluteal epithelial nerve is the lateral branch of the posterior branch of the 1-3 lumbar nerves, which parallelly penetrates the deep fascia in the iliac crest at the intersection of the line between the greater trochanter of the femur and the third lumbar vertebrae, and the branches of the nerve penetrate on the surface of the lumbar dorsal fascia, and form the gluteal epithelial nerve vascular bundles outwardly and inferiorly, and then transcends the skeleton valley and enters into the upper gluteal lobe-like adipose connective tissues. At the ventral border of the gluteus maximus muscle, as the layered adipose connective tissue becomes a lobed structure, the gluteal epithelial nerve also divides into a number of fine branches and enters into it, innervating the corresponding parts of the gluteal fascia and skin tissue. The superior gluteal nerve is susceptible to injury because the branches travel through the thick lumbar musculature and the lumbar dorsal fascia and cross the hard iliac crest before reaching the superior gluteal region.