The causes of right knee pain in patients, including right knee trauma, degenerative changes in the right knee, are as follows: First, right knee trauma: right knee trauma, such as joint sprain, joint fracture, ligament rupture, meniscus tear, can lead to right knee pain symptoms, accompanied by joint swelling and limited joint movement, taking MRI, X-ray can confirm the above diagnosis. Local braking, rest, and surgery are required for gradual recovery. Second, degenerative changes in the right knee: degenerative changes in the right knee, such as osteoarthritis, can also cause knee pain symptoms, most of which are accompanied by limited joint flexion and extension activities, and in severe cases, inversion deformity and valgus deformity of the knee joint can occur, and the force line of the lower limb can be significantly changed. Patients with pain in the knee joint should be seen and treated promptly, which can lead to relief of symptoms.