Synovitis of the knee is not a meniscus injury. Typically, synovitis is characterized by swelling and fluid buildup in the joint. Meniscus injury, on the other hand, is characterized by pain when moving the joint and a noise. In addition, synovitis occurs mainly in the synovial membrane near the joint, while meniscus injury occurs in the meniscus inside the joint. If you suffer from synovitis, you can use topical application or medication. Topical compresses can be used to promote blood circulation and improve inflammation. At the same time, medication can also be used to treat the disease, and antibiotic drugs such as diclofenac sodium and celecoxib can be used under the guidance of a doctor. If you are suffering from synovitis, you should go to the hospital in time to confirm the diagnosis, and under the guidance of the doctor to carry out the appropriate treatment.