Hematocrit is the sedimentation rate of erythrocytes. Hematocrit of 19mm/h is elevated for men and normal for women. Due to the different test standards in different hospitals, the specific reference range also varies, it is recommended to take the actual report as the basis and interpret it under the guidance of a doctor. Under normal circumstances, the normal range of blood sedimentation is 0~15mm/h for men and 0~20mm/h for women, therefore, the blood sedimentation rate of 19mm/h is slightly higher for men and normal for women. Clinical causes of increased blood sedimentation include physiologic and pathologic causes. Physiologic causes: infants and young children, menstruation, the third month of pregnancy to postpartum, etc., which may not be related to the disease. Pathological causes: mainly seen in acute inflammation, active tuberculosis, active rheumatic disease, severe tissue destruction, anemia, malignant tumors and so on. If you find increased blood sedimentation, it is recommended to consult the doctor in time, and improve the relevant examination under the guidance of the doctor in order to clarify the diagnosis and standardize the diagnosis and treatment.