Osteonecrosis (ON) of the femoral head frequently occurs when glucocorticoid are administered as a treatment for collagen diseases or for immunosuppression after organ transplantation.

• 糖皮质激素诱发股骨头坏死的机制目前有多种,但其发病确切机制仍存在争议,从而使得其预防性的治疗措施无法实施。