Sudden pain on the top of the foot may be caused by tissue damage, fasciitis, gout and other reasons. 1. Tissue injury: the surface of the foot extrusion, collision, improper shoes, excessive activities may cause tissue injury, resulting in pain, redness and swelling of the surface of the foot. 2. Fasciitis: lesions on the fascia of the top of the foot can cause sudden pain on the top of the foot, which is often caused by factors such as decreased immunity and strain. 3. Gout: it can be manifested as redness and swelling of the joints, pain on the top of the foot, etc. Some patients may have headache, fever and other symptoms, and the recent excessive intake of purine-rich foods and excessive alcohol consumption may lead to gout attacks. Sudden pain on the surface of the foot may be metatarsal tumors, metatarsal fractures, etc. It is recommended to consult a doctor as soon as possible to complete the examination and follow the doctor’s instructions, so as not to delay the treatment of the disease.