If the femoral neck fracture is still painful after one year of internal fixation, anti-infection treatment and hip arthroplasty can be performed. 1. Anti-infection treatment: because the steel nail is a foreign body, a small number of people in the fracture of internal fixation surgery after the foreign body infection, resulting in inflammation and pain in the surgical area, then need to first anti-infection treatment, if necessary, need to consider the internal fixation removal surgery. 2. Hip replacement: after internal fixation of femoral neck fracture, it is easy to have femoral head necrosis because of the obstacle of blood supply, and the typical symptoms are deep pressure pain in groin area and limitation of hip joint activities, etc. At this time, it is necessary to improve the MRI examination of the hip joint to further clarify the problem, and if it proves to be the necrosis of the femoral head, it is necessary to carry out the hip replacement surgery as soon as possible if it is in a position to do so. How to treat the pain, you need to go to the hospital, improve the relevant examination (such as hip CT), according to the history, physical examination and test results to facilitate the doctor’s comprehensive judgment, in order to formulate the next step of the treatment plan.