Many elderly patients with hip and knee disorders have concerns about joint replacement surgery, mainly because of the risks associated with the procedure and the poor functional recovery afterwards. Artificial joint replacement surgery has been an increasingly mature and widely performed procedure for more than 50 years. The greatest purpose and advantage of this surgery is the ability to reconstruct large joints that have lost function, significantly improving the quality of life for the elderly population. As for the risks of the surgery, the main ones are as follows: 1. The risks during anesthesia. Since the patients undergoing surgery are mainly elderly, their ability to tolerate anesthesia and surgery is relatively poorer than that of young people in general. If the general condition is good, the preoperative examination shows that there are no serious organic diseases in the internal organs and the physiological functions are basically normal, then the whole anesthesia and surgery process is relatively safe and there is no need to worry too much; 2. There are mainly fractures around the artificial joint prosthesis, neurovascular injury, thrombosis and fat embolism and so on. However, as long as the surgeon prepares carefully and operates carefully, generally speaking, there is not much chance of these situations occurring; 3, post-surgical complications. The main ones are dislocation of artificial joint prosthesis and deep vein embolism of lower limbs. As long as postoperative observation and guidance are strengthened, they can generally be avoided. Even if they occur, they will not lead to serious consequences as long as they are handled correctly and in a timely manner. Therefore, elderly patients with joint disease should not be too afraid of artificial joint surgery, but should actively cooperate with their doctors in the preoperative, intraoperative and postoperative examinations, treatment and rehabilitation exercises in order to obtain the maximum recovery of joint function and improve the quality of life. Since the physiological functions of the human body continue to decline with age, we do not recommend patients to adopt a “delay as long as you can” strategy, but rather to choose the most appropriate time to undergo surgery under the advice of the doctor, in order to obtain the best treatment results.