Male Gluteal Fold

Description

Seen in posterior view on an adult male, the gluteal region is defined inferiorly by the gluteal fold (gluteal sulcus), a transverse skin crease that arcs laterally beneath the bulk of gluteus maximus. Medially, the fold approaches the natal cleft over the sacrococcygeal midline, while laterally it fades toward the proximal thigh at the level of the greater trochanter. Superior to the sulcus, the convex contour of the buttock reflects the underlying gluteal musculature; inferior to it, the posterior thigh begins. Surface anatomy of the gluteal fold matters because clinicians often use it as an external proxy for the inferior border of gluteus maximus and for estimating safe corridors in the dorsogluteal region, where poor landmarking can place injections closer to the sciatic nerve or superior gluteal vessels than intended. The relationship between the sulcus and the ischial tuberosity also guides positioning and pressure mapping, since prolonged sitting concentrates load near the ischial region and can predispose to pressure injury, particularly in patients with reduced mobility. Use this asset for teaching surface anatomy in gross anatomy and physical examination courses, for illustrating patient positioning and landmarking in nursing and paramedic injection training materials, or for editorial discussions of gluteal contour, crease morphology, and postoperative planning in reconstructive and aesthetic surgery publications. It also supports clinical documentation and patient education where a clear, nonsexualized posterior body landmark is needed. Anatomical accuracy verified by SciePro's Medical Advisory Board.