Normal values of blood sedimentation: 0~15mm/h for men and 0~20mm/h for women. 1. Hematocrit: also known as erythrocyte sedimentation rate, is formed by the interaction of earth gravity, plasma buoyancy and blood components, and its value is mainly affected by globulin, fibrinogen and red blood cells in plasma. 2. Increased sedimentation rate: Physiologic increase in sedimentation rate is usually seen in children under 12 years old, elderly people over 60 years old, and women during menstruation. Pathological acceleration is mainly seen in various inflammatory diseases, acute myocardial infarction, malignant tumor, chronic nephritis, cirrhosis, systemic lupus erythematosus and other diseases. 3. Slowed blood sedimentation: If there is a slowed blood sedimentation, it may be related to erythrocytosis, spherocytosis, fibrinogen deficiency and other diseases. Warm reminder: if the patient appears to increase or slow down the blood sedimentation, should be timely hospital consultation, clear cause and treatment.