Meniscus injury and rheumatism cause, symptoms and so on there are some differences, patients need to pay attention to identify. 1. Etiology: meniscus injury is usually due to direct trauma violence, may also be long-term weight-bearing cumulative injury, and knee sprain, long-term weight-bearing squatting, knee osteoarthritis and other factors can induce meniscus injury. The cause of rheumatism is not yet completely clear, usually considered to be related to genetics, immune system dysfunction and other factors. 2. Symptoms: Usually, in the acute stage of meniscus injury, there is a clear history of trauma, and mostly manifested as pain, swelling and joint interlocking of the affected knee. Some patients with mild symptoms will only experience pain, which will not affect the joint movement. If the symptoms are more severe, there may be limited movement, ligament damage, muscle atrophy, joint popping and other phenomena. Rheumatic disease patients will have joint lesions, often localized pain, swelling and impaired mobility and other symptoms, some patients may also be accompanied by morning stiffness, if the disease is serious, it can also lead to joint deformity and dysfunction. If the disease invades other parts of the body, such as the eyes and heart, it can also be manifested as scleritis, pleural effusion, pericarditis, and so on. It is recommended that patients with meniscus injury and rheumatism should consult the hospital in time to clarify the cause of the disease and take reasonable treatment measures under the guidance of the doctor.