Erythrocyte sedimentation rate 52mm/h may be related to infections, autoimmune system diseases, tumors and other causes, it is recommended that further examination and treatment according to the cause. The normal range of erythrocyte sedimentation rate is between 0 and 20mm/h. 52mm/h indicates an elevated erythrocyte sedimentation rate. Increased fibrinogen, cholesterol and globulin in plasma can cause elevated erythrocyte sedimentation rate. Infections, rheumatic fever, tumors and other release of pro-inflammatory factors, can promote increased synthesis of fibrinogen, multiple myeloma can lead to increased globulin can cause increased erythrocyte sedimentation rate. Therefore, the erythrocyte sedimentation rate of 52mm/h does not belong to the physiological phenomenon, it is recommended to consult a doctor in time to clarify the cause of the disease and then treat the cause.