When do I need an artificial joint replacement? Usually, joint damage is not as life-threatening as other diseases such as tumors, heart disease, fractures, etc. In most cases, joint disease develops slowly, and many patients accept the disease slowly, suffering years of pain and suffering, taking large amounts of oral medication to control symptoms, without the desire to actively seek treatment, which actually affects the quality of life. This has a significant impact on the quality of life. In addition, life is about movement, and after joint problems occur, the amount and range of daily activities will be greatly affected, and many complications will arise, such as increased blood sugar (diabetes is treated based on diet control and activity), obesity, constipation, cardiovascular disease, etc. Therefore, patients with joint pain should seek medical attention as soon as possible, and the need for joint replacement should be determined by the patient’s condition. Simple methods to determine whether the lower extremity is deformed or not, such as taking a film to see if there are changes in the joint space, and localized osteophytes are not the purpose of joint replacement.