Rheumatoid arthritis is an autoimmune disease with a high incidence and disability rate, and is one of the most difficult problems in medicine that has not yet been overcome. The disease is also known as connective tissue disease because it mainly affects connective tissue. The symptoms of rheumatoid arthritis start slowly, with fatigue, weakness, weight loss, poor appetite, low fever, numbness and tingling in the hands and feet. 2, rheumatoid arthritis symptoms appear, joint pain, enlargement, symmetry, surrounding skin warm, flushed, when automatic or passive movement will cause pain. 3, rheumatoid arthritis symptoms of joint involvement often starts from the small joints of the distal extremities, and then involves other joints. 4, rheumatoid arthritis symptoms most like to invade our knee and hip joints and so on. 5, rheumatoid arthritis symptoms appear after the joint near the muscle stiffness and atrophy. 6. When rheumatoid arthritis symptoms are severe, the affected joints become stiff and deformed, and the knees, elbows, fingers, and wrists are fixed in the flexed position and eventually immobilized. If you have the above symptoms in your joints or body, then you need to go to the hospital as soon as possible to achieve better treatment results.