Bilateral femoral head replacement together will have different effects on different people due to different factors such as individual constitution and severity of the disease, and cannot be generalized. If you are in good condition and can tolerate the surgery and anesthesia, you can have bilateral replacement at the same time. For example, if you are in good health and not very old, you can have both femoral heads replaced at the same time. If you are not in good health, have other diseases, such as heart disease, high blood pressure, diabetes and other serious diseases, and if you are too old, it will increase the risk of surgery, so it is not recommended to replace both femoral heads together. Moreover, if the anesthesia technology of the hospital is weak, the anesthesia time is delayed, which will increase the risk of anesthesia, plus the body is weak, the operation time is long, which will easily increase the risk of infection, and it is also not recommended to replace both femoral heads together. If bilateral femoral head replacement is needed, it is recommended to go to a regular hospital and make a reasonable surgical plan under the evaluation of doctors and anesthesiologists.