A high platelet pressure product of 0.43 may be due to an elevated mean platelet volume, such as in late pregnancy, or an elevated platelet count, such as in myelodysplastic syndrome. 1. Elevated mean platelet volume: late pregnancy, primary thrombocytopenic purpura, myelodysplastic syndromes, acute leukemia in remission, etc. may cause elevated mean platelet volume, resulting in elevated platelet pressure. 2. Elevated platelet count: Infection, blood loss, myelodysplastic syndromes, chronic granulocytic leukemia and other conditions may cause elevated platelet count, which may lead to elevated platelet pressure. High platelet count may also be caused by other reasons, so you should go to the hospital in time, and the doctor will make a comprehensive judgment of the cause of the disease according to the results of the examination and carry out targeted treatment.