Hip replacements can be done on both sides at once, but the decision needs to be made on a patient-by-patient basis. Technically speaking, bilateral hip replacement can be done in one operation without any problem. If the patient is in good physical condition, has no underlying diseases such as diabetes, coronary heart disease, etc., and can tolerate a long time of surgery and anesthesia, and if the hospital conditions allow, and the blood bank has good reserves, it is completely possible. Moreover, bilateral hip replacement can be completed at one time, which is conducive to postoperative recovery and less expensive. However, if the patient’s basic condition is poor, and the cardiopulmonary function is not enough to support a long time of surgery and anesthesia, most of the patients are not recommended to have bilateral hip replacement at the same time. Because bilateral hip replacement at the same time, the operation time will be relatively longer, the bleeding will be larger, the anesthesia time will be longer, the postoperative resuscitation will take longer, and the risk of the operation will be higher, so the patient’s loss will not outweigh the gain. For details, please consult a specialized doctor at the hospital.