Elderly people with leg pain can take oral calcium carbonate D3 tablets, and should also take vitamin C supplements to promote the absorption of calcium. The elderly also need to rule out other diseases for leg pain, such as lumbar disc herniation, lumbar spinal stenosis, knee osteoarthritis, hip synovitis, joint cavity effusion and osteoarthritis. All of these diseases can lead to leg pain symptoms in the elderly, and specific tests need to be performed to rule out other diseases depending on the specific location. After excluding other diseases, if it is calcium loss or insufficient calcium intake, proper calcium supplementation can be carried out to maintain a stable calcium environment in the body. When lumbar disc herniation and lumbar spinal stenosis occur, active treatment with oral medication and physical therapy is needed to relieve symptoms, and chronic injuries in other areas also need to be actively treated to relieve clinical symptoms.