Low macroplatelet count can be seen in pseudo-thrombocytopenia, insufficient platelet production and other reasons. 1. Pseudo-thrombocytopenia: Most of them are due to errors during the test, for example, the choice of EDTA as the anticoagulant during blood sampling will lead to platelet agglutination and thus cause errors, which can be re-tested by replacing the anticoagulant. 2. Insufficient platelet production: this can be seen in the use of drugs that inhibit bone marrow proliferation, such as sodium phosphonate, or suffering from aplastic anemia, acute leukemia, etc. It is necessary to improve the relevant tests and make a clear diagnosis under the guidance of the physician. Low platelet count should seek medical treatment in time, improve relevant examinations, and be diagnosed and treated by professional doctors.