The common causes of heel pain after running include soft tissue injury of the heel, heel bursitis, heel bone spurs, Achilles tendonitis, plantar fasciitis and so on. 1. Soft tissue injury of the heel: because the running time is too long or the shoes are too tight, resulting in excessive wear and tear of the soft tissues around the heel, soft tissue injury causes pain. 2. Post-heel bursitis: it is a sterile inflammation that occurs in the bursa of the root of the foot, which is caused by too much friction between the heel and the heel due to poorly fitted shoes or shoes that are too hard or too tight, and the common symptom is pain in the heel. 3. Bone spurs of the heel bone: because the cartilage of the heel bone is damaged and worn out, causing bone repair, hardening and proliferation of bone spurs, when running, because of the friction with the surrounding tissues, causing bursitis of the heel, and pain. 4. Achilles tendonitis: because of the injury of the Achilles tendon caused by too much exercise, aseptic inflammation occurs, resulting in pain. 5. Plantar Fasciitis: because of the exercise caused by the plantar tendon, fascia injury, aseptic inflammation, resulting in pain. Heel pain after running is due to a variety of reasons, and may also be related to fractures, bone tumors, osteoporosis, flat feet and other diseases, if the symptoms continue to be unrelieved, it is recommended to consult a doctor in a timely manner, to clarify the cause of the disease, targeted treatment.