What Causes Aseptic Necrosis?

Aseptic necrosis is a serious disorder where bone tissue does not receive an adequate blood supply. Bone tissue is living tissue and needs the oxygen and nutrients that the blood brings. Without it, bone begins to die. Minuscule cracks can start to appear in the bone, and over time the cracks widen, and the bone can collapse. The symptoms of aseptic necrosis can be silent in the early stages. In later stages, the patient feels pain when they try to put weight on their bone, and after time the bone starts to hurt even when they are at rest. The most common sites for aseptic necrosis are the bones around the hip, the thigh, shoulder, hand, foot or knee.