If the pain of medial knee tendon is caused by medial meniscus injury, it can be treated by medication as well as surgery; if it is caused by ligament injury, it can be treated by braking, icing, compression bandage, application of brace or plaster cast, medication and surgery. 1. Medial meniscus injury: There is obvious tearing of the medial meniscus, and the torn part of the meniscus will be pulled and cause pain during the process of knee flexion. You can take oral diclofenac sodium extended-release tablets, meloxicam tablets and other drugs under the guidance of the physician to treat the more serious condition can be carried out meniscus repair surgery, meniscectomy. 2. Ligament injury: injury to the medial collateral ligament of the knee joint can cause ligament tear and ligament rupture. Patients need to take braking, ice, pressure bandage, application of support or plaster cast, etc., with oral meloxicam tablets, loxoprofen tablets and other medications; more serious conditions need to be ligament repair surgery and other treatments. Specifically need to go to the hospital, under the guidance of the physician treatment, but also the correct application of drugs, you can not randomly use drugs.