If a patient has pain in the dorsum of the right foot, not red or swollen, just sudden pain, this condition is seen in the following cases: I. Fasciitis of the dorsum of the right foot: especially in the acute attack of fasciitis, it easily leads to pain and pressure pain in the dorsum of the right foot, but there will be no local redness or swelling. Second, osteophytes: the right foot has degeneration, osteophytes, after the activity, the increased bone easily stimulate the surrounding ligament nodes, thus triggering the right dorsal foot pain, and local will not appear obvious redness and swelling. Third, lumbar disc herniation: after compressing the nerve root on the right side, the patient will also have sudden pain on the back of the right foot, but it is not red or swollen. Therefore, after a patient has pain in the back of the right foot, which is neither red nor swollen, it is important to consult a doctor to see what is the cause. Treat the cause to promote pain reduction and recovery. In the case of right dorsal foot pain, it is important to avoid prolonged standing and sitting, and avoid prolonged bending activities to avoid aggravating the pain. When the pain is obvious, you can temporarily apply non-steroidal anti-inflammatory drugs, together with blood circulation drugs to reduce the pain.