Low platelets can bring great harm to human health. When a platelet count test reveals a decrease in the number of platelets, it may be due to a decrease in platelet production or an increase in platelet consumption. The main treatment method is to stop bleeding, which can be treated with glucocorticoids, intravenous infusion of gammaglobulin, platelet-producing drugs, rituximab and other drugs; 2, thrombotic thrombocytopenic purpura: the main characteristics of thrombocytopenia, fever, etc. For patients with episodes, they can be treated with methylprednisolone, dexamethasone and other drugs; for those with severe symptoms, immunosuppressive therapy can be used, such as the application of anti-CD20 monoclonal antibody. 2, increased platelet consumption 1, congenital thrombocytopenia: such as neonatal hemolytic disease, thrombocytopenia of prematurity, etc., mostly due to immune factors, the need to apply immunosuppressive drugs for treatment, such as hormones, gammaglobulin and other drugs; 2, non-immune factors caused by thrombocytopenia: such as viruses, bacteria and other pathogenic bacteria caused by thrombocytopenia, you can target the type of pathogenic bacteria Drug treatment can be carried out. In addition, in either case, when platelets are below 20×10^9/L, the risk of causing organ bleeding is relatively high, and transfusion of single-collected platelets is recommended to support treatment. During treatment, care should be taken to rest in bed as much as possible and avoid strenuous activity to prevent aggravation of bleeding.