Leg pain in the elderly should be alert to overwork and arthritis, osteoporosis, lumbar spine disease, bone tumors and other diseases. 1. Over-exertion: such as climbing mountains or walking or cycling for a long time, resulting in lactic acid accumulation caused by leg muscle pain. 2. Arthritis: such as osteoarthritis, rheumatoid arthritis, gouty arthritis, etc. can cause pain in the joints, and may also cause pain in the muscles and ligaments around the joints, and may also have symptoms such as impaired joint movement. 3. Osteoporosis: Osteoporosis can also cause leg pain and chest and back pain, and in severe cases, fractures can occur. 4. Lumbar spine diseases: such as lumbar disc herniation, lumbar spinal stenosis, lumbar spondylolisthesis, lumbar spine tumors and other lumbar spine diseases may compress or stimulate the nerve root and cause radiating pain in the leg. 5. Bone tumor: if bone tumor appears on the bones of lower limbs, it will cause leg pain and other symptoms due to the destruction of bone. Elderly leg pain may also have other reasons, such as rest after the pain does not improve, it is recommended to go to the hospital in time to identify the cause of the targeted treatment.