Platelet pressure product of 0.285% is high, which may be due to an increase in platelet count, commonly seen in chronic granulocytic leukemia, acute blood loss and other diseases; it may be due to an increase in mean platelet volume, commonly seen in primary thrombocytopenic purpura, late pregnancy and other diseases. Platelet pressure product is the product of the number of platelets and the average volume of platelets, which is affected by the number of platelets and the average volume of platelets, and the normal reference value is: 0.11%-0.23%. Therefore the platelet pressure product of 0.285% is higher than normal. Increased platelet count will lead to high platelet pressure product, commonly found in chronic granulocytic leukemia and other platelet abnormal proliferation, or acute blood loss, acute hemolysis lead to elevated platelet reactivity, need to be combined with routine blood and other tests to determine the cause of the disease. Increase in the average platelet volume will also lead to increased platelet pressure area, not accompanied by platelet count abnormalities, often suggesting that the megakaryocytes are highly mature, myelopoietic function is good, the disease is common in the primary thrombocytopenic purpura, late pregnancy, megaloblastic anemia, and so on. Therefore, it is difficult to determine the cause of the disease simply because of the high platelet count. It is recommended to follow up with the doctor in time to evaluate other routine blood tests and other tests for a comprehensive assessment.