Plantar pain in the elderly may be caused by plantar fasciitis, osteoarthritis, lumbar degenerative diseases and other causes. 1. Plantar fasciitis: due to the elderly standing for a long time or wearing hard-soled shoes walking, resulting in localized chronic aseptic inflammation, patients may appear plantar pain. 2. Osteoarthritis: patients may suffer from plantar pain due to rheumatism, rheumatoid rheumatism and osteoarthritis caused by degeneration of bone and joints, infection, immunity and other factors in the elderly. 3. Lumbar degenerative diseases: due to the degeneration of the lumbar spine of the elderly can lead to the narrowing of the nerve root canal, the patient may appear elderly foot pain. Elderly foot pain may also have other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, give targeted treatment or treatment.