Soreness above the knee may be caused by quadriceps tendonitis and degeneration of the knee joint.
1. Quadriceps tendonitis: the upper part of the knee is the quadriceps muscle of the thigh, and the continuation part of the muscle is the tendon. If you walk a lot or train a lot, the quadriceps tendon may be stimulated by repeated pulling and pulling, which may cause aseptic inflammation of the quadriceps tendon and lead to accumulation of lactic acid, resulting in the symptom of soreness on the upper part of the knee.
2. Degeneration of the knee joint: clinically known as osteoarthritis of the knee joint, osteoarthritis of the knee joint may result in the formation of a bone capsule in the knee joint. If the bone capsule formed is located at the upper pole of the patella, it will cause repeated impact or abrasion of the knee joint when it is extended and flexed, resulting in an increase in the swelling or exudation around the joint, and the symptom of soreness above the knee may also occur.
Sometimes the cause cannot be accurately determined by the symptoms of above-the-knee soreness alone, and it is necessary to combine the characteristics of the medical history and other test results to make an accurate judgment, and it is recommended to clarify the cause of the disease under the guidance of a doctor.