Possible causes of heel pain include physiological phenomenon, trauma, Achilles tendonitis and heel bursitis. 1. Physiological phenomenon: If you wear shoes that do not fit your feet and walk for a long time, the heel will be repeatedly rubbed and stimulated, resulting in damage to the skin and subcutaneous tissues, which can cause pain and is a normal phenomenon. 2. Trauma: there is a clear history of trauma, such as jumping from a high place, sports sprains, car accidents, etc., resulting in injuries to the muscles, tendons, ligaments, skin and other soft tissues around the ankle joint, and serious fractures of the tibiofibular bone and Achilles bone, which can cause pain. 3. Achilles tendonitis: trauma, long-term stretching of the Achilles tendon, chronic strain injury and other reasons, resulting in aseptic inflammation of the Achilles tendon area, heel pain can occur. 4. Post-heel bursitis: If the shoes do not fit properly, long-term running, etc., causing the heel bursa to be friction, causing aseptic inflammatory reaction, can also be painful. Causes of heel pain when walking is more reasons, may also be related to tumors, lumbar disc herniation, diabetes complications 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.