Blood sedimentation is the rate of erythrocyte sedimentation, blood sedimentation rate of 26mm/h indicates that the speed is faster, the reasons include physiological (such as menstruation, pregnancy, etc.) and pathological (such as rheumatic disease activity, acute inflammation, aplastic anemia, etc.) and so on. 1. Physiological reasons: such as women’s menstruation, pregnancy, etc., which can physiologically cause the body to increase the rate of blood sedimentation. 2. Pathological causes: such as active period of rheumatic fever, acute inflammation, malignant tumor and blood system diseases. (1) Active rheumatic fever: the erythrocyte sedimentation rate will be accelerated in this period, and will be slowed down after the condition improves, and the erythrocyte sedimentation rate may return to the normal range in the inactive period. (2) Acute inflammation: In acute episodes of inflammation, the erythrocyte sedimentation rate may be elevated. (3) Malignant tumors: in the occurrence, recurrence or metastasis of tumors may cause an increase in the body’s erythrocyte sedimentation rate, and the rate may slow down after treatment. (4) Blood system diseases: such as aplastic anemia may cause increased sedimentation rate. In addition to the above causes, diseases such as active tuberculosis and systemic lupus erythematosus may also cause accelerated erythrocyte sedimentation rate. If the above results occur, it is recommended to go to the hospital in time, after completing the relevant examinations, in order to clarify the cause of the disease, and give targeted treatment under the guidance of the physician.