Plantar pain can be caused by the following reasons: first, plantar fasciitis, plantar fasciitis patients can have the symptoms of plantar pain after standing for a long time, the pain is more obvious after cold, exertion, this time to early examination and physical examination, to exclude other diseases to diagnose. Second, the heel bone spur, when the heel bone has osteophytes can also have pain in the sole of the foot, especially after standing for a long time pain is very obvious, then we should take an X-ray of the heel bone to confirm the diagnosis, early antiosteophyte treatment and physical therapy. Thirdly, when there is chronic inflammation of the metatarsal head, there can also be symptoms of pain in the sole of the foot after standing for a long time, and there can also be symptoms of pain in the sole of the foot after walking or exertion, and then X-rays and CT of the foot should be examined for diagnosis and treatment.