There is no difference between aseptic necrosis of the femoral head and ischemic necrosis of the femoral head, which are two different names for one disease. The reason why it is called aseptic necrosis is because there is no bacterial infection in this kind of femoral head necrosis, while ischemic necrosis refers to the state of this kind of femoral head necrosis caused by local blood circulation disorder, which can also be called aseptic ischemic necrosis of the femoral head. Necrosis. There are many reasons for this disease, such as long-term overweight, heavy physical labor, prolonged use of hormones, long-term alcohol abuse or hip trauma, which can lead to localized ischemia of the femoral head and bone necrosis without bacterial infection, resulting in a series of symptoms. In the case of early ischemic femoral head necrosis, the disease can be cured through comprehensive and effective treatment, but once it is left untreated for too long, it is likely to cause significant joint dysfunction.