Ischemic necrosis of the femoral head is a common disease in orthopedics, and once suffering from it, complete cure is a very difficult task. Early detection and early treatment is the key period for cure, and once the early treatment opportunity is missed, it predicts the eventual need for artificial total hip replacement surgery. So, are there any precursors of ischemic necrosis of the femoral head? What factors can lead to ischemic necrosis of the femoral head? Can it be detected early? First of all, pain around the hip joint is a precursor of ischemic necrosis of the femoral head. Once the pain around the hip joint is accompanied by pain aggravated by walking and relieved by rest, it is necessary to pay enough attention and seek professional medical consultation in time. When you have taken hormones (glucocorticosteroids) or drink a lot of strong alcohol for a long time (more than half a kilogram per week for more than a few years) because of other diseases, or if you have a clear history of hip trauma and fracture, you should seek professional medical consultation in time to rule out ischemic necrosis of the femoral head. Once the above-mentioned conditions are present, a definite diagnosis can be obtained by taking X-rays, MRI of the hip joint and other imaging examinations. Of course, many hip diseases such as acetabular dysplasia, hip osteoarthritis, hip synovitis, hip labral impingement syndrome, hip inflammation in ankylosing crestitis, hip inflammation in rheumatoid arthritis, minor trauma to the hip joint, hip infection or tuberculosis may cause hip pain symptoms. Therefore, if you have hip pain symptoms, you need to see an orthopedic surgeon in time to confirm whether you have the above-mentioned diseases, especially whether you have ischemic necrosis of the femoral head, so that you can be detected and treated in time.