There may be several reasons for the soreness of the sole of the foot: first, plantar fasciitis, plantar fasciitis is often due to long-term long-distance walking, strain, or long-term plantar cold, which leads to chronic aseptic inflammation of the plantar fascia, and can also be due to chronic inflammation of the plantar fascia after trauma, which can lead to soreness of the sole of the foot, pain in the morning or just a walk when the sole of the foot Second, kidney deficiency, when the kidney deficiency can also appear sore feet, pain symptoms, often accompanied by weakness of the knees, then to the Department of Traditional Chinese Medicine to take a pulse diagnosis, after diagnosis to early treatment of kidney medicine.