What should I do if I have pain above my knee when I bend my leg?

The pain above the knee is considered muscle strain, patellar bursitis, osteoarthritis, etc., can be taken for the cause of drug treatment, physical therapy. 1. Muscle strain: excessive exercise or walking too much can be caused by the quadriceps strain, pain above the knee, should pay attention to rest, avoid strenuous exercise, local pain can be applied with non-steroidal drugs such as diclofenac diethylamide cream. 2. suprapatellar bursitis: chronic strain injury can cause synovial membrane hypertrophy, increased exudate leading to suprapatellar bursitis, can appear above the knee, a bending leg pain symptoms, should pay attention to rest and braking, you can take a hot compress or ultrasonic physiotherapy methods, you can also take non-steroidal anti-inflammatory analgesic drugs such as diclofenac sodium, ibuprofen and so on. 3. Osteoarthritis: degenerative knee joint lesions or long-term excessive exercise and other factors can lead to osteoarthritis of the knee, there will be knee pain, you can take non-steroidal drugs such as diclofenac sodium to relieve the pain, but also oral glucosamine sulfate and other nutritive nerve medications, the symptoms of serious cases can be injected into the joints of sodium vitreous acid, you can also take infrared physiotherapy and other methods. Pain above the knee pain when bending the leg, there are many other reasons, should go to the hospital in time to identify the cause, for the cause of further treatment.