The faster the blood sedimentation, the more severe the rheumatoid arthritis is and the more pronounced the joint pain. The normal value of blood sedimentation in rheumatoid arthritis is within 20 mm/h. More than 20 mm/h means that the arthritis is not completely under control. At the same time, the blood sedimentation of rheumatoid arthritis is positively correlated with the disease and treatment, and after treatment the blood sedimentation can be reduced to normal, therefore, the blood sedimentation is a very important indicator to judge the effect of treatment and the condition. Patients with rheumatoid arthritis should be treated regularly, systematically and scientifically, and try to control the blood sedimentation within 20mm/h. Do not believe in the so-called prescriptions and delay the disease.