If your knee hurts after hitting the corner of a table, you may have soft tissue damage, knee cartilage damage, and knee synovial inflammation. It is recommended to seek medical attention when the vague pain appears, and after clarifying the specific cause, take medication and physical therapy under the guidance of a doctor to help relieve the discomfort.1. Soft tissue injury: Knee hitting the corner of a table usually causes direct damage to the soft tissue of the knee, such as skin, subcutaneous tissue, ligaments and other structures, if not rested in time, the vague pain will persist. After diagnosis, appropriate local cold compresses can be applied, and topical diclofenac diethylamine emulsion, oral Hu Lixan capsules to help relieve clinical symptoms, before recovery to limit the knee joint weight-bearing walking; 2, knee cartilage injury: after the knee hit the corner of the table, if the situation is more serious, easy to cause knee cartilage injury, especially the patella posterior cartilage injury, the patient will also have been vague pain clinical performance. After diagnosis, you need to avoid excessive flexion and extension of the knee joint, and auxiliary ultrashort wave therapy to eliminate damaging inflammation, with oral chondroitin sulfate sodium tablets and other drugs to promote cartilage repair; 3, knee synovitis: the knee hit the corner of the table can damage the synovial membrane, synovial inflammation, patients can also appear all the time vague pain clinical manifestations, and can be accompanied by joint swelling. After diagnosis, you can apply topical compound Nanxing pain relief cream, flurbiprofen gel paste, and take oral celecoxib capsules and other drugs to eliminate synovial inflammation, reduce joint effusion and promote joint function recovery.