Riding knee pain mostly refers to knee pain when riding, and the common causes are over-exercise, trauma, knee synovitis and so on. 1. Exercise overload: due to long time riding, exercise overload, resulting in knee joint transient synovial edema, triggering knee pain, is a normal phenomenon, can be relieved after rest. 2. Trauma: there is a clear history of trauma, because of sprains, falls, high jumps, car accidents, etc., leading to anterior and posterior cruciate ligaments, medial and lateral collateral ligaments, meniscus and other injuries to the knee, and even tibiofibula, patella, femur fracture, can appear knee pain. 3. Knee synovitis: it is the aseptic inflammatory reaction that occurs in the knee joint, caused by long time walking and riding, resulting in chronic strain, because of the inflammatory factor stimulation, so the knee joint can appear pain and other symptoms. Causes of knee pain when riding more reasons, but also may be related to goosefoot bursitis, lumbar disc herniation 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, targeted treatment.