Rheumatoid arthritis is not a disease.

Rheumatoid arthritis is

an autoimmune disease mainly associated with group A hemolytic streptococci infection. Tumor-related characteristics are not typical of rheumatoid arthritis. Rheumatoid arthritis affects large joints, such as knees, ankles, elbows, etc. Joint pain, swelling, redness are common manifestations, and are migratory, can be transferred from one joint to another joint. In

addition to joint symptoms, may also be accompanied by fever, carditis, annular erythema, subcutaneous nodules and other extra-articular manifestations. Laboratory tests show increased anti-streptococtolysin "O" and accelerated erythrocyte sedimentation rate. Treatment mainly uses ibuprofen, diclofenac sodium and other non-steroidal anti-inflammatory drugs to relieve symptoms, while the application of penicillin, cefixime and other antibiotics to eliminate streptococcal infection, if necessary, the use of prednisone, prednisolone and other glucocorticoid drugs to control the disease, but generally does not involve treatment measures for tumors. It should be noted that these drugs should be used under the guidance of doctors.

Rheumatoid arthritis has its own clear characteristics and pathogenesis, and has little correlation with tumors.