Pain in the hindfoot is commonly associated with plantar fasciitis and heel bone spur formation. Plantar fasciitis is caused by excessive foot walking or strenuous exercise, resulting in a strain or strain on the plantar fascia, which can lead to a sterile inflammatory lesion over time. As the feet are not warm enough and get cold easily, blood circulation slows down and inflammatory metabolites accumulate, making it easy to feel pain. If bone spurs appear in the heel, these spurs are often also due to repeated inflammatory lesions, and the calcium salts in the inflammatory exudate are gradually deposited, and calcification and hyperplasia are formed. After calcification and hyperplasia form bone spurs, they will stimulate the surrounding skin, subcutaneous tissue, tendons, muscles, and ligaments, and when performing activities or walking with weight, as these bone spurs will further stimulate the surrounding tissues, they will The pain is noticeable during activity or weight-bearing walking.