There may be several reasons for the soreness and pain in the sole of the foot: first, plantar fasciitis, plantar fasciitis can appear soreness and pain in the sole of the foot, often in the cold, pain and swelling is very obvious when exertion, then to carry out relevant examinations and physical examination to exclude other diseases for diagnosis. Second, rheumatoid diseases, when rheumatoid involvement of the palms of the feet, can appear on the sole of the foot sore, swollen, painful symptoms, it is necessary to carry out relevant blood tests and foot x-ray examination, to carry out early diagnosis and early treatment. Third, metatarsal disease, when the metatarsal bones have metatarsal headitis or fatigue fracture, the symptoms of soreness and pain in the sole of the foot can appear, especially when walking for a long time, the soreness and pain is very obvious when straining, then we should carry out relevant medical examination and X-ray examination of the foot for early diagnosis and treatment.