It is possible to reverse milder forms of osteonecrosis, but it is not certain that it can be reversed. The main approach is to rest, avoid weight bearing such as running and jumping, combined with some medications to improve blood circulation, and some other physical methods. In fact, all these methods are not very specific treatments, that is to say, they are not yet effective for sure, but after all, with these methods of treatment, some of the patients’ symptoms can be relieved and the lesions do not continue to progress in terms of imaging. This is because after the necrotic phase of the femoral head, there will be a repair phase. Therefore, for early stage patients, we would still recommend the approach of preserving the femoral head, although it is not necessarily called reversal, but actually it should be a remission of the lesion and then a slow recovery on this stage, and these cases are actually available in clinical practice. It is just that, so far, there is not a drug or a conservative treatment that has a very positive effect on femoral head necrosis.