It is true that all surgeries have certain risks, and although artificial joint replacement surgery is a mature procedure, there are still some potential surgical risks, just like any other surgery. Some people think that there is no risk if they do not have surgery, but in fact, not having surgery is not completely without problems. First of all, because osteonecrosis of the femoral head is painful and makes it difficult for the patient to walk or walk poorly, it will significantly affect the quality of life. At the same time, in the long run, the bone of this side of the femoral head necrosis may become lax due to the reduction of limb activity, and once the bone is lax, when you want to do surgery, the effect of joint replacement surgery may be discounted. Moreover, if the joint lesion is so severe that the entire joint becomes osteoarthritic and the joint is severely deformed, the surgery will be more difficult and complicated. Also, the leg may shorten and affect the walking gait, which will make the surgery more difficult. In addition, if one side is in pain, the body will adjust and transfer some strength to the other side, which will increase the burden on the other limb and femoral head, then the original good joint may also have problems under such pressure. In addition, femoral head necrosis may also affect the spine, because after this lesion occurs, it may cause shortening or pain, the waist will not be straight, but will be somewhat tilted, which may also have a negative impact on the spine in the long term. Taking painkillers for a long time due to pain, taking herbal medicine or some other related drugs for a long time is also not a good thing for the body. Therefore, when it comes to the need for surgery but not doing it, there is actually a risk, only this risk is not concentrated in a period of time like doing surgery, but a long-term, slowly developing process.