Knee soreness after exercise may be a normal physiological phenomenon caused by a large amount of exercise, or it may be that the patient has osteoarthritis, knee soft tissue injuries and other diseases, the symptoms are obvious after exercise. 1. Physiological phenomenon: If the patient has a large amount of exercise in a single session, it may cause slight synovial edema of the knee joint, which may cause knee soreness. 2. Soft tissue injuries: If the patient has previously caused soft tissue injuries such as knee meniscus or medial collateral ligament due to strenuous exercise, the injuries will be aggravated during the exercise process, and the knee will be sore after the exercise. 3. Osteoarthritis: If the patient’s knee joints appear degenerative osteophytes, which may cause osteoarthritis, the inflammation worsens after exercise, and the pain intensifies. If the patient’s knee pain after exercise can not be relieved, you should go to the hospital in time to check, clear the cause of the disease and then consult a doctor.