Heel pain in babies may be caused by overactivity, or it may be caused by diseases such as plantar fasciitis, heel fracture and other diseases such as epiphyseal inflammation. 1. Over-activity: If the child has over-activity in daily life, it may lead to congestion of the soft tissues of the soles of the feet, resulting in heel pain, which will be relieved after rest. 2. Plantar fasciitis: Plantar fasciitis is mainly caused by the plantar fascia or muscles being under high load for a long time, which repeatedly pulls the plantar fascia. Affected children will experience severe pain in the heel, which is most obvious after walking in the morning. 3. Fracture of heel bone: Fracture of heel bone is mainly caused by external traumatic factors such as fall from height, traffic accident, heavy objects extrusion, etc. The main symptoms of children are heel pain, activity limitation, swelling, bruising, deformity and other symptoms. 4. Other: epiphysitis, bone cancer and other diseases can also lead to heel pain. There may be other causes of heel pain in babies, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or therapy under the guidance of the doctor.