Detailed Depiction of the Coccygeal Foveola or Tailbone Dimple

Description

Centered in the posterior midline over the distal sacrum and coccyx, the coccygeal foveola appears as a small cutaneous depression within the intergluteal (natal) cleft. Superior to it lies the sacral region, while the tip of the coccyx sits deep to the overlying skin and subcutaneous fat; inferiorly the dimple relates to the postanal area, positioned above the anal verge and posterior to the anal canal. Lateral contours of the buttocks frame the cleft, with the dimple marking a surface point along the median plane. Surface dimples in this location matter because they sit at the intersection of dermatologic, congenital, and colorectal considerations. A simple coccygeal foveola can be a normal variant, but when associated with a pit, hair tuft, drainage, or tenderness it raises concern for pilonidal disease, and when atypically high, off-midline, or accompanied by neurologic signs it can prompt evaluation for a dermal sinus tract or occult spinal dysraphism. Palpation over this landmark also helps localize coccygeal pain (coccygodynia) and orient examination of the anococcygeal region after trauma or childbirth. Small landmark, big implications. Use this artwork in gross anatomy and surface anatomy teaching to reinforce posterior pelvic landmarks, midline orientation, and the relationship of the coccyx to perineal structures in the adult female. It also fits well in clinical skills manuals, dermatology and colorectal surgery references, and patient-facing educational materials discussing pilonidal sinus versus benign sacrococcygeal dimples. Anatomical accuracy verified by SciePro's Medical Advisory Board.