The pain in the foot with no obvious cause may be caused by the following reasons: 1, the patient has walked or stood for a long time resulting in fatigue fractures and foot pain. 2, the patient has a history of contusion, but because the symptoms of contusion were not obvious at the time, so did not care, did not deliberately rest, braking, but walked a lot or self-massage resulting in increased pain in the foot. 3. foot pain caused by gout attacks, usually with a history of alcohol consumption or oral consumption of high purine food, blood tests will find high uric acid values. 4. foot skin conditions can also cause foot pain. 5. rheumatoid arthritis or osteoarthritis may also occur foot pain.