Is osteonecrosis of the femur an undead cancer? Absolutely not. Does femoral head necrosis always require artificial joint replacement? Not necessarily. Femoral head necrosis is a common and intractable disease in the field of orthopedics, which refers to a bone and joint disease that causes structural changes in the femoral head, femoral head collapse and joint dysfunction due to microcirculation disorders in the femoral head. The word “erosion” shows the destructive nature of the lesion and the difficulty of treatment. Therefore, there are many overstatements in the society, such as “necrosis of the femoral head is an immortal cancer”, “necrosis of the femoral head will lead to paralysis”, “necrosis of the femoral head must be replaced by artificial joints”. “. All these have caused a lot of psychological pressure to the patients. Well, I would like to say to our patients with femoral head necrosis: relax, although femoral head necrosis is difficult to treat, it is not a terminal disease, it will not be paralyzed, and it does not necessarily require artificial joint replacement. At present, there are good treatments for different stages of osteonecrosis to ensure the function and efficacy of the patient, so there is no need to be afraid. What we patients need to do is to understand the disease and choose the right treatment at different stages of osteonecrosis. Femoral head necrosis can be divided into six stages according to the condition, from mild to severe, and different treatment methods are available for different periods. Stage 0 patients have hip symptoms, but X-rays and MRI are normal. Stage 0 patients are mainly treated with medication, with regular review and close observation of the development of the disease, avoiding heavy physical labor and climbing hills and stairs as much as possible. We recommend the combination of Celine Bone, Fosamax and Calcium D for oral medication. Stage I patients have hip symptoms, normal X-rays and abnormal MRI. Stage I patients can undergo drilling and decompression of femoral head necrosis while taking the above drugs orally, and should be reviewed regularly, closely observe the development of the disease, and avoid heavy physical labor and climbing. Stage II Patients with hip symptoms, abnormal MRI, X-ray showing translucent and sclerotic changes in the femoral head Stage III Abnormal MRI, X-ray showing subchondral collapse (crescent sign), no flattening of the femoral head Stage II and III patients are treated in the same way, because although the femoral head is not deformed at this time and artificial arthroplasty is not needed for the time being, the femoral head has already developed a cavity The femoral head will collapse and deform at any time, so simple decompression of the femoral head cannot achieve the treatment effect. In this case, a support rod should be implanted to hold the femoral head against the cavity to prevent premature collapse of the femoral head under weight. Other treatment is the same as before, taking the above mentioned medications orally, reviewing the condition regularly, closely observing the development of the condition, and avoiding heavy physical work and climbing hills and stairs as much as possible. X-ray after implantation of the support rod Stage IV X-ray shows flattening of the femoral head Stage V X-ray shows joint stenosis or acetabular lesion Stage VI severe degenerative changes Patients in stages IV, V and VI can only undergo total hip arthroplasty because the femoral head has collapsed and deformed due to femoral head necrosis. And try to complete the surgery before stage VI, because once the acetabulum has severe wear and bone defects, it will significantly reduce the stability and service life of the artificial joint prosthesis. After the artificial joint replacement surgery, you no longer need to take medication, and your life is the same as that of a normal person. In conclusion, patients, take out your own X-rays and MRI and look at them against each other to understand the past life of femoral head necrosis, don’t be afraid, our treatment is still quite effective.