Foot bending tendon pain is commonly caused by the following reasons: 1, trauma: direct violence or indirect violence injury, can cause local pain symptoms, accompanied by swelling and activity limitation, the serious X-ray will also find fractures. 2, prolonged weight-bearing or excessive activities: lead to local strain or tendon sheath inflammation, can cause pain symptoms. 3, chronic inflammation of the joints: can cause stiffness of the joints, as well as the local Muscle, tendon tension and spasm, and produce pain symptoms. Generally, the above clinical manifestations should be diagnosed and treated in time, which can make the symptoms get relieved quickly. Usually, attention should be paid to protect the feet, prevent trauma, overstrain, so as to prevent the recurrence of symptoms.