The medical term for the dorsum of the foot is dorsum of the foot, and the possible causes of pain in the dorsum of the foot for no reason are fasciitis, gout, and vascular occlusion. 1. Fasciitis: Fasciitis occurs after repeated friction on the dorsum of the foot due to prolonged walking and tight shoes, and it is a kind of aseptic inflammation, which can cause pain on the dorsum of the foot. 2. Gout: Due to abnormal urate metabolism, urate deposition in the local area causes inflammatory reaction, which can cause pain on the back of the foot, mostly accompanied by local fever, redness and swelling. 3. Vascular occlusion: If there is arteriovenous occlusion of the lower limbs, pain, swelling, blackening and other symptoms of the ankle can occur. Causes of dorsal foot pain are more reasons, may also be related to 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, and to carry out targeted treatment.