类风湿性关节炎(rheumatoid arthritis)是一种病因尚未明了的慢性全身性炎症性疾病,以慢性、对称性、多滑膜关节炎和关节外病变为主要临床表现,属于自身免疫炎性疾病,与环境、细胞、病毒、遗传、性激素及神经精神状态等因素密切相关。该病好发于手、腕、足等小关节,反复发作,呈对称分布。早期有关节红肿热痛和功能障碍,晚期关节可出现不同 Rheumatoid arthritis is a chronic systemic inflammatory disease whose etiology is not yet known. Chronic, symmetrical, synovial and extra-articular diseases are the main clinical manifestations and belong to the autoimmune and inflammatory diseases. And the environment, cells, viruses, heredity, sex hormones and neuropsychiatric status and other factors are closely related. The disease occurs in the hands, wrists, feet and other small joints, recurrent, was symmetrical distribution. Early joint swelling and pain and dysfunction, advanced joints may appear different