The heel may be extremely swollen, the posterior ankle sulcus may become shallow, and the entire hindfoot may be swollen and painful, which may be misdiagnosed as a sprain. x-ray examination, in addition to lateral radiographs, should be taken to determine the type and severity of the fracture by taking axial images of the heel bone. In addition, the heel bone is a spongy bone and there is often no clear fracture line after compression, so it is sometimes not easy to distinguish. CT scan or MRI is required only in some cases. CT scan or MRI is available for those who have difficulty in diagnosis, especially CT scan is more useful in the diagnosis and prognosis of the fracture. The main auxiliary examinations for this disease are imaging examinations, and the main manifestations are: 1. fracture of the anterior process of the heel bone 2. vertical fracture of the heel tuberosity. 3.Carrier talonavicular fracture. 4.Compression fracture of the heel bone. 5.Comminuted fracture of the heel bone. Osteomyelitis of the heel: Patients with this disease mainly present with an acute onset, often accompanied by high fever and swelling of the heel bone. Due to the increased intraosseous pressure, the heel bone has severe pain, pressure pain and percussion pain. Early tomography or CT scan reveals a focal area of reduced density. Since the area is cancellous bone with abundant blood flow, there is rarely dead bone formation. As the lesion progresses, there may be more calcium deposits and new bone formation, and the bone density increases. Achilles spur syndrome: Heel pain in the subacromial region caused by pulling the plantar fascia over the periosteum, with or without bone spurs on X-ray. The spur is due to excessive pulling of the plantar fascia on the attachment of the heel bone to the periosteum. The excessive pull causes pain at the inner edge of the plantar fascia (plantar fasciitis). Lesions that cause tension in the plantar fascia include flatfoot and Achilles tendon contracture. The disease is caused by traumatic factors, so paying attention to production and life safety, avoiding trauma, and ensuring personal safety is the focus of this disease prevention. It is also important to note that there are many different classifications of the disease, and each classification has its own advantages and disadvantages, so doctors should analyze the results of plain films and CT examinations when diagnosing the disease in order to give the correct diagnosis and allow patients to receive the correct treatment in a timely manner.