The pain in the heel when walking is mostly seen in heel bone spur, plantar fasciitis, heel fat pad inflammation, heel bursitis and heel trauma, etc. Besides, it may also be physiological reasons, which need to improve the examination in order to clarify the cause of the disease. 1. Heel bone spur: It is mainly caused by the repeated pulling of the plantar fascia on the heel due to a lot of walking, and the heel bone spur can be painful when walking. 2. Plantar Fasciitis: It is related to too much exercise, and belongs to the aseptic inflammatory reaction of the plantar fascia, there are pressure and pain points in the heel, and the pain can be aggravated when walking. 3. Plantar fat pad inflammation: it is mainly caused by the external force on the heel when walking or exercising, which leads to the damage of the plantar fat pad, and is manifested as edema and pain in the heel. 4. Heel bursitis: mostly seen in women who are used to wearing high heels, which is related to the extrusion and friction of the bursa in the heel, and is aseptic inflammatory reaction of the bursa. 5. Heel trauma: in the process of walking, there is a history of obvious trauma at the heel, considering the local soft tissue contusion, or even fracture caused by local pain, more often accompanied by swelling. 6. Physiological reasons: excessive walking may also appear heel pain, can be relieved after rest. It is recommended that the patient go to the hospital, complete the examination, in order to clarify the cause of the disease, and then give the appropriate treatment by a professional physician for the cause of the disease.