If the platelet count is low, the number of mature platelets in the blood is relatively high, which generally does not cause greater harm to the human body, but if the normal range is not restored for a long time, there may be some damage to the human body. There are many reasons for the low number of large platelets, which may be seen in the following cases: 1, pseudo thrombocytopenia: may be the error in the examination process leading to a pseudo low number of large platelets, such as the use of EDTA anticoagulant blood draw, platelet aggregation clots, resulting in errors in counting, this should be followed by sodium citrate or heparin anticoagulation after re-examination, in most cases, the data is more accurate after re-measurement. 2, insufficient platelet production: such as after taking drugs that inhibit bone marrow function, non-megakaryocytopenia and aplastic anemia, etc., some patients with acute myeloid leukemia may also have low platelet count, at this time, patients should promptly consult a doctor, improve the corresponding examination items, such as bone marrow aspiration, combined with clinical symptoms, the patient’s medical history and other specific circumstances to make a diagnosis, and then take the appropriate treatment Measures, in daily life to try to avoid infection and bleeding, pay attention to rest, avoid strain, etc.; 3, excessive platelet destruction: thrombocytopenic purpura, AIDS, dispersive intravascular coagulation, and taking certain drugs that can cause thrombocytopenia, such as anti-tumor drugs, immune regulating drugs, etc. may lead to low platelet count, the patient should not stop the drug at home, to seek timely medical Treatment, by the doctor to decide whether it is necessary to follow the drug or reduce the drug dose, according to the doctor’s diagnosis to take the appropriate treatment; 4, platelet distribution abnormalities: platelet distribution abnormalities in the body, mainly related to the low number of large platelets caused by the spleen, the first need to clarify the diagnosis, whether the patient has a primary disease, such as hypertension, coronary heart disease, etc., if there is a basic disease, the first targeted control blood pressure or ventilate blood vessels, etc. It is recommended that once the test results occur when the large platelet count is low, it is necessary to seek a professional doctor for examination and clarify the cause. Then actively cooperate with the doctor’s treatment. In most cases, the index can be controlled better after passing systematic treatment means, such as radiotherapy, chemotherapy and other ways.