As with all devices, artificial total hip prostheses are subject to wear and tear. With modern technological advances and innovations in the design, processing, materials, and surgical techniques of artificial total knee prostheses, artificial total hip prostheses are becoming more and more resistant to wear and tear and have a longer service life. There are many factors that can affect the service life of a total hip prosthesis, such as the patient’s weight, labor and exercise, severity of disease, bone quality, type of material of the joint surface of the prosthesis, as well as wear characteristics, design of the prosthesis, surgical technique, recovery of the lower extremity force line, combined diseases, and so on. Therefore it is not possible to accurately determine the service life of each prosthesis in each patient, although in vitro experiments have yielded better wear properties for each available prosthesis, the material implanted in the human body is different from the in vitro environment, and body fluids and complex mechanical environments can affect the wear strength of the prosthesis. According to the literature, the retention rate of prosthesis can be 90-99% for 15-20 years. Among some early designed prostheses, there are reports of cases that have even exceeded 40 years of use without loosening. Therefore, there is no need to worry too much about the longevity of the prosthesis compared to the improvement in symptoms and function obtained after surgery.