The cause of heel pain may be plantar fasciitis, heel subluxation bursitis, as follows: a. Plantar fasciitis: the most common cause is plantar fasciitis, the starting point of the plantar fascia is in the heel bone, the termination point is at the base of the implant. If you often walk with weight, such as walking up and down stairs, hiking, walking with a heavy schoolbag, will make the plantar tendon membrane under increased tension, which will cause plantar fasciitis in the long run, manifested as pain in the area of the plantar tendon membrane, which can be manifested as pain in the heel, and pain in the plantar heart, which can also be manifested as pain in the forefoot, which varies from person to person. The first thing you need to do is to consider the heel bursitis, because there is a bursa below the heel bone called the heel bursa, if you get cold or often stimulated by external forces, such as often long distance walking, running, will cause the tension of the heel bursa to increase, it will cause bursitis, manifested as the pain under the heel.