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Ischiogluteal Bursa

bursa ischiadica musculi glutei maximi

The ischiogluteal bursa lies between the gluteus maximus and the ischial tuberosity, becoming inflamed from prolonged sitting on hard surfaces (weaver's bottom) or from direct trauma to the posterior hip. It must be distinguished from proximal hamstring tendinopathy at the ischial tuberosity, which produces identical location pain but is reproduced by resisted knee flexion rather than direct sitting pressure alone.

Region: Pelvis & Hip

Biomechanics

Function & Actions

Reduces friction between the gluteus maximus and the ischial tuberosity during sitting and hip movement

Clinical Relevance

Clinical Notes

Ischiogluteal bursitis produces posterior buttock pain reproduced by direct ischial tuberosity pressure and by prolonged sitting, distinct from the exercise-worsened hamstring tendinopathy. MRI differentiates the two — bursitis shows fluid between the gluteus maximus and ischium, while hamstring tendinopathy shows signal change within the tendons at the bony insertion. Corticosteroid injection into the bursa provides effective relief.

Pathology

Common Injuries & Conditions

Ischiogluteal Bursitis

Ischial tuberosity bursal inflammation from prolonged hard surface sitting producing posterior hip pain managed with cushioned seating and corticosteroid injection.