There are many clinical reasons for knee pain in 17-year-old patients, the most common consideration is caused by the following conditions One, the presence of epiphysitis, mainly or usually strenuous exercise or local cold and other reasons caused by aseptic inflammation, usually manifested as knee pain symptoms. For such patients, most of them pay strict attention to rest and protection, local hot compresses or scalding, scalding can be used externally some herbs to activate blood circulation and remove blood stasis, boil it and then smoked, and apply some ointment to activate blood circulation and remove blood stasis, slowly will recover. The patient’s knee pain can also be caused by soft tissue injury, fracture dislocation, ligament damage caused by trauma, to clarify what is causing the knee pain, you need to combine the physical examination, with some auxiliary tests to make a clear diagnosis, such as the need to do an MRI of the knee joint.