The pain in the back of the foot may be caused by gout, or it may be caused by inappropriate shoes, fasciitis and so on. 1. Gout: the disease is mainly directly related to purine metabolism disorders and hyperuricemia caused by uric acid excretion disorders, the patient will have pain in the back of the foot, mainly manifested as fever, fatigue, arthralgia and other symptoms. 2. Inappropriate shoes: If the patient wears inappropriate shoes, the soles are too hard or the shoes are too tight or too narrow, which affects the blood circulation of the patient’s feet, and the patient will have pain in the back of the feet when standing or walking for a long time. 3. Fasciitis: If patients are affected by trauma, chronic strain, humid environment, immunity and other factors, it will lead to back pain. It is recommended that patients go to the orthopedics, rheumatology and immunology departments of regular hospitals in a timely manner, under the guidance of the doctor for relevant examinations, according to the specific results of the examination, to take targeted treatment.