Right knee pain can be caused by knee osteoarthritis, meniscus injury, medial collateral ligament injury, muscle injury, etc. General treatment, medication and surgical treatment are feasible. 1. Knee arthritis: when knee arthritis occurs, the articular cartilage is severely worn out, and pain symptoms can appear on the inner side of the knee. It is necessary to reduce the activities of knee bending, take oral analgesic drugs such as Celecoxib, and inject sodium vitreous to lubricate and nourish the articular cartilage, and surgical treatments such as knee replacement can be used in case of serious conditions. 2. Meniscus injury: trauma or sports injury can lead to meniscus damage, causing pain in the inner side of the knee, need to avoid local activities, fixed in a brace for protection, oral analgesic drugs such as Celecoxib, and if necessary, feasible meniscectomy or repair treatment. 3. Medial collateral ligament injury: trauma or excessive wear and tear can lead to injury of the medial collateral ligament, need more bed rest, reduce knee activities, can be used as topical flurbiprofen ester topical cream for analgesic and anti-inflammatory treatment, but also follow the doctor’s instructions to take ibuprofen and other analgesic drugs orally, conservative treatment is ineffective need for surgical treatment. 4. Muscle injury: external force or knee sprain can lead to medial muscle and other tissue injuries, need to avoid local activities, moderate elevation of the affected limb, to promote local swelling, can be taken orally to alleviate the swelling of blood circulation and blood stasis drugs such as Panax ginseng tablets, but also the application of analgesics such as Loxoprofen sodium treatment, but also in the regular hospital for localized ultrashort wave, massage, acupuncture and other therapies. When the inner side of the knee joint pain should be timely medical treatment, in favor of early relief of local pain and other uncomfortable symptoms, do not blindly use drugs.