Three months after femoral head replacement surgery, walking pain may be caused by aseptic inflammation, loosening of the prosthesis, etc. According to the reasons, rest, hot compresses, functional exercises and medication can be given. 1. Aseptic inflammation: after femoral head replacement surgery, the prosthesis can stimulate the soft tissues around the joints and aseptic inflammation occurs, which can lead to walking pain, so it is necessary to pay attention to rest, avoiding exertion, avoiding walking for a long time, and at the same time paying attention to local warmth, avoiding cold, and local hot compresses can be given. 2. Loosening of the prosthesis: After femoral head replacement surgery, if you don’t get timely or necessary functional exercise, the muscles and tendons around the joints will become weak and the prosthesis will loosen, you should strengthen the functional exercise under the guidance of the doctor, and if the pain is more serious, you can take ibuprofen and other analgesic drugs as prescribed by the doctor. There may be other reasons for walking pain three months after femoral head replacement surgery, you should go to the regular hospital in time, the doctor according to the symptoms, signs and auxiliary examination to determine the cause of the disease, for the cause of the disease to give the correct treatment.