Causes of Avascular Necrosis of the Femoral Head

The main causes of avascular necrosis of the femoral head include the following: 1. Trauma: Such as femoral neck fractures, hip dislocations, which may cause impairment of blood supply to the femoral head, leading to necrosis. 2. Corticosteroid use: Long-term or high-dose use of corticosteroids, especially glucocorticoids, may cause lipid metabolism disorders, osteoporosis, and other conditions that lead to avascular necrosis of the femoral head. 3. Unhealthy lifestyle habits: Such as chronic heavy alcohol consumption, smoking, and eating high-fat foods. These habits may lead to abnormal blood lipids and vascular occlusion, thus affecting blood supply to the femoral head. 4. Other medical conditions: Such as decompression sickness, sickle cell anemia, and coagulation disorders, which may also cause avascular necrosis of the femoral head. Prevention and treatment of avascular necrosis of the femoral head require comprehensive consideration of multiple factors and the implementation of targeted interventions.