What causes pain under the knee?

In clinical practice, patients show pain below the kneecap, that is, pain at the tibial tuberosity. Most of the causes are osteoporosis in the knee joint, which causes patients to suffer from osteoporosis. In addition, if the patient's knee joint, bones show hyperplasia, degeneration and aging, causing patients to suffer from osteoarthritis of the knee joint. In patients with knee joint activities, can also stimulate local pain feeling. In addition, patients with knee joint, there is a long time of chronic weight-bearing activities, resulting in patellar tendon shows aseptic inflammation. Patients with patellar tendinitis, or local fasciitis, bursitis and other diseases, can cause pain below the knee bone phenomenon. Can instruct patients to reduce weight-bearing activities, bed rest. In the pain site can be given closed treatment, or external application of blood circulation, swelling and pain plaster, you can make the pain phenomenon to be relieved.