Plantar foot pain can be caused by strain injury, plantar fasciitis, neuritis, etc. 1. Strain injury: In daily life, if you walk for a long time, wear inappropriate shoes or have a bad arch angle, etc., it will lead to pain in the sole of the foot when walking. 2. Plantar Fasciitis: If you walk with weight or walk or run frequently, it will lead to an increase in the load on the plantar fascia. The cutaneous nerve of the plantar fascia is compressed, which can easily cause aseptic inflammation of the plantar surface, leading to the phenomenon of walking with pain in the sole of the foot. 3. Neuritis: If subjected to mechanical compression, trauma, nutritional disorders, metabolic disorders, autoimmune diseases, heredity, etc., it will lead to plantar plate pain when walking. If the pain persists for a long time, you need to go to the hospital in time, under the diagnosis of the doctor, according to the patient’s specific condition, targeted treatment.