In general, there is no best solution for joint pain in the elderly. Common causes include rheumatoid arthritis, degenerative joint lesions, and joint trauma. It is mainly treated by medication. 1. Rheumatoid arthritis: the cause of pain is mainly due to synovial inflammation and bone destruction. Treatment is mainly through anti-rheumatic drugs, such as salicylazosulfapyridine, etc., but also the use of non-steroidal anti-inflammatory drugs such as ibuprofen, aspirin, etc., as prescribed by the doctor, with anti-inflammatory and analgesic effects, can relieve the patient’s symptoms. 2. Degenerative arthropathy: mainly joint degeneration caused by local hyperplasia, causing joint pain. Commonly found in the elderly, it is recommended to treat with glucocorticosteroids such as cortisone, and at the same time, pay attention to supplemental calcium, such as calcium carbonate, etc., which can effectively slow down the progress of the disease and alleviate the symptoms at the same time. 3. Joint trauma: If the patient has serious knee injuries, such as fracture, dislocation, meniscus tear, cruciate ligament rupture, or medial and lateral collateral ligament rupture, surgery should be considered. Restoring the integrity of the diseased structure through minimally invasive surgery such as arthroscopy can ensure gradual recovery of joint function. In summary, patients are advised to go to the hospital to check the cause of joint pain and take further treatment measures.