Popliteal muscle injury and osteoarthritis may be the cause of popliteal bone pain on the inner side of the right knee, and it is recommended to consult a doctor in time to find out the cause. 1. Popliteal muscle injury: popliteal muscle injury is the most common cause of popliteal muscle injury. Popliteal muscle is at the back of the knee, which prevents the bones from shifting when walking. If popliteus muscle is damaged, it can cause popliteal bone pain on the inside of the right knee. 2. Osteoarthritis: Articular cartilage mainly plays the role of cushioning and support. With age, the articular cartilage in the right knee will slowly be worn out, which will easily lead to osteoarthritis, and then indirectly cause popliteal bone pain in the right knee. The right knee popliteal bone pain, should be timely to the regular hospital, the doctor to clarify the cause of the disease, give targeted treatment.