How to cure lower knee pain, generally can be given, reduce the amount of exercise, hot compresses physiotherapy, non-steroidal anti-inflammatory analgesic drugs, closed treatment, surgical treatment. The main thing is to first clarify the cause of the disease, and then treat the cause. Common causes of knee immobility: patellar tendonitis, tibial tuberosity epiphysitis, foot synovitis, bone tumor. 1. Patellar tendonitis: first of all, local braking, external fixation with a brace, external diclofenac diethylamide cream, local hot compresses and physiotherapy, general symptoms can be slowly relieved. 2. Tibial tuberosity epiphysitis: this kind of lesion is mostly seen in growing children, this disease is self-limiting disease, but when the pain should reduce the amount of exercise, wear knee pads. 3. foot synovitis: mostly caused by sports injuries, so the first treatment is to avoid sports, using microwave therapy, far infrared therapy, pain can be oral diclofenac sodium enteric capsule, or local closed treatment. 4. Bone tumors: most of the pain caused by bone tumors can only be relieved by surgical treatment. There may be other causes for pain in the lower part of the knee. Patients with related problems are advised to go to the hospital to avoid delay.